7th class Physics Bridge Program
... moves. Unit : C.G.S unit : cm S.I unit : m Note: The distance travelled by body is always positive. Displacement : It is the shortest distance between initial and final point in a definite direction. Unit : C.G.S unit : cm S.I unit : m Note : (i) For a moving body displacement can be positive, negat ...
... moves. Unit : C.G.S unit : cm S.I unit : m Note: The distance travelled by body is always positive. Displacement : It is the shortest distance between initial and final point in a definite direction. Unit : C.G.S unit : cm S.I unit : m Note : (i) For a moving body displacement can be positive, negat ...
chapter 7
... b. The sunbather has linear momentum as she walks to one end of the raft. Since the linear momentum of the isolated system must remain zero, the raft must acquire a linear momentum that is equal in magnitude and opposite in direction to that of the sunbather. From the definition of linear momentum, ...
... b. The sunbather has linear momentum as she walks to one end of the raft. Since the linear momentum of the isolated system must remain zero, the raft must acquire a linear momentum that is equal in magnitude and opposite in direction to that of the sunbather. From the definition of linear momentum, ...
No Slide Title
... • Weight = mass acceleration of gravity – W = mag where ag = 9.81 m/s2 on Earth – Depends on location • ag varies slightly with location on Earth. • ag is different on other planets. ...
... • Weight = mass acceleration of gravity – W = mag where ag = 9.81 m/s2 on Earth – Depends on location • ag varies slightly with location on Earth. • ag is different on other planets. ...
Name Reading Science – Newton`s Laws and Roller Coasters In
... gravitational potential energy—they are about to be put into motion. Roller coaster cars will accrue enough energy from the lift hill to be powered through the rest of the ride and once put into motion they will not stop until the brakes are applied at the end of the ride. Newton’s second law is the ...
... gravitational potential energy—they are about to be put into motion. Roller coaster cars will accrue enough energy from the lift hill to be powered through the rest of the ride and once put into motion they will not stop until the brakes are applied at the end of the ride. Newton’s second law is the ...
centripetal force
... A record player spins at 5 rpm’s. One penny is placed 1 cm away from the center of the record and has a tangential speed of 2 m/s. What will be the rotational and tangential speed of a penny placed at 3 cm away from the center? ...
... A record player spins at 5 rpm’s. One penny is placed 1 cm away from the center of the record and has a tangential speed of 2 m/s. What will be the rotational and tangential speed of a penny placed at 3 cm away from the center? ...
1. Give the magnitude and direction of the net force acting on (a) a
... (a) As drop of rain is failing with a constant speed, acceleration is zero, and in accordance with first law of motion, the net force on the drop of rain is zero. (b) A cork is floating on water, its weight is balanced by the up thrust, the upward force namely buoyancy Therefore, net force on cork i ...
... (a) As drop of rain is failing with a constant speed, acceleration is zero, and in accordance with first law of motion, the net force on the drop of rain is zero. (b) A cork is floating on water, its weight is balanced by the up thrust, the upward force namely buoyancy Therefore, net force on cork i ...
Review questions
... Answer: FALSE (Newton’s 3rd law. The Earth and Moon pull with exactly equal forces.) Diff: 2 11) If you exert a force F on an object, the force which the object exerts on you will A) depend on the relative masses of you and the object. B) be F in all cases. C) depend on whether or not the object i ...
... Answer: FALSE (Newton’s 3rd law. The Earth and Moon pull with exactly equal forces.) Diff: 2 11) If you exert a force F on an object, the force which the object exerts on you will A) depend on the relative masses of you and the object. B) be F in all cases. C) depend on whether or not the object i ...
4 Newton`s Second Law of Motion
... • A heavy truck is harder to stop than a small car moving at the same speed. We say that the truck has more momentum than the car. • A small bullet moving at a high speed can have the same large momentum as a huge ship moving at a small speed. By Momentum we mean inertia in motion Momentum = mass ...
... • A heavy truck is harder to stop than a small car moving at the same speed. We say that the truck has more momentum than the car. • A small bullet moving at a high speed can have the same large momentum as a huge ship moving at a small speed. By Momentum we mean inertia in motion Momentum = mass ...
Force
... jump rather than flying toward the sun. If the sun has more mass, then why doesn’t it have a larger gravitational pull on you? • This is because the gravitational force also depends on the distance between the objects. • As the distance between two objects gets larger or further, the force of gravit ...
... jump rather than flying toward the sun. If the sun has more mass, then why doesn’t it have a larger gravitational pull on you? • This is because the gravitational force also depends on the distance between the objects. • As the distance between two objects gets larger or further, the force of gravit ...
act04
... The first thing that you should do is to compare everyone’s work on the questions above. In particular, you should compare your group’s expressions for the launch (final) velocity of the cart in terms of the distance the hanging mass falls and the acceleration of the cart. The expression should not ...
... The first thing that you should do is to compare everyone’s work on the questions above. In particular, you should compare your group’s expressions for the launch (final) velocity of the cart in terms of the distance the hanging mass falls and the acceleration of the cart. The expression should not ...
Shock and Acceleration Theory
... To understand how representing a bulk material as a spring can allow us to understand the effects of A, L, and E on accelerations experienced during an impact, we will think about what happens when we drop the same object, from the same height, on two different materials. Since the drop height is eq ...
... To understand how representing a bulk material as a spring can allow us to understand the effects of A, L, and E on accelerations experienced during an impact, we will think about what happens when we drop the same object, from the same height, on two different materials. Since the drop height is eq ...
8-3 Perfectly Inelastic Collisions
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... This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their courses and assessing student learning. Dissemination or sale of any part of this work (including on the World Wide Web) will destroy the integrity of the work and is not permit ...
PHYSICS HOMEWORK #31 NEWTON`S LAWS SECOND LAW ΣF=ma
... = 125.0 Newtons so that the crate is accelerating to the left at a constant rate of a = 1.10 m/sec 2. a. Complete the free body diagram showing all the forces acting on the crate. b. What will be the magnitude of the frictional force acting on this crate? c. What is the coefficient of sliding fricti ...
... = 125.0 Newtons so that the crate is accelerating to the left at a constant rate of a = 1.10 m/sec 2. a. Complete the free body diagram showing all the forces acting on the crate. b. What will be the magnitude of the frictional force acting on this crate? c. What is the coefficient of sliding fricti ...
Work and Simple Machines Info
... The very tip of a screw is usually shaped like a triangle, which makes it a tiny wedge. Higher up on the screw are the threads. The threads of a screw are actually one long spiral, reaching from the bottom of the screw to the top. If this spiral was unwound, it would simply be an inclined plane. Thi ...
... The very tip of a screw is usually shaped like a triangle, which makes it a tiny wedge. Higher up on the screw are the threads. The threads of a screw are actually one long spiral, reaching from the bottom of the screw to the top. If this spiral was unwound, it would simply be an inclined plane. Thi ...
Classical central-force problem
In classical mechanics, the central-force problem is to determine the motion of a particle under the influence of a single central force. A central force is a force that points from the particle directly towards (or directly away from) a fixed point in space, the center, and whose magnitude only depends on the distance of the object to the center. In many important cases, the problem can be solved analytically, i.e., in terms of well-studied functions such as trigonometric functions.The solution of this problem is important to classical physics, since many naturally occurring forces are central. Examples include gravity and electromagnetism as described by Newton's law of universal gravitation and Coulomb's law, respectively. The problem is also important because some more complicated problems in classical physics (such as the two-body problem with forces along the line connecting the two bodies) can be reduced to a central-force problem. Finally, the solution to the central-force problem often makes a good initial approximation of the true motion, as in calculating the motion of the planets in the Solar System.