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Forces-part2 [Compatibility Mode]
... Inertial reference frame • An inertial reference frame is one in which an observer: Sees no change in the velocity if the sum of all forces exerted on the system object is zero The force diagram and the motion diagram match. ...
... Inertial reference frame • An inertial reference frame is one in which an observer: Sees no change in the velocity if the sum of all forces exerted on the system object is zero The force diagram and the motion diagram match. ...
Speed/Motion Notes!
... •Boat a 6 mph east •River c 4 mph east •Velocity=6 mph east+ 4mph east •V= 10 mph east •River b 4mph west •Velocity=6mph east– 4mph west •V= 2mph east ...
... •Boat a 6 mph east •River c 4 mph east •Velocity=6 mph east+ 4mph east •V= 10 mph east •River b 4mph west •Velocity=6mph east– 4mph west •V= 2mph east ...
Classroom Activity Template
... National Standard: Physical Science: Content Standard B. The motion of an object can be described by its position, direction of motion, and speed (B.2.1). An object that is not being subjected to a force will continue to move at a constant speed and in a straight line (2.2.2). If more that one force ...
... National Standard: Physical Science: Content Standard B. The motion of an object can be described by its position, direction of motion, and speed (B.2.1). An object that is not being subjected to a force will continue to move at a constant speed and in a straight line (2.2.2). If more that one force ...
Projectile Motion
... Circular Motion Suppose two identical objects go around in horizontal circles of identical diameter but one object goes around the circle twice as fast as the other. The force required to keep the faster object on the circular path is The answer is E. As the A. the same as velocity increases the B. ...
... Circular Motion Suppose two identical objects go around in horizontal circles of identical diameter but one object goes around the circle twice as fast as the other. The force required to keep the faster object on the circular path is The answer is E. As the A. the same as velocity increases the B. ...
Motion in one and two dimensions
... All motions are relative.The motion (velocity) of an object depends on which frame of reference is used to measure it. We say the measured velocity is relative to the chosen frame of reference. Usually the ground is the preferred choice as the reference frame and very often it is not specifically me ...
... All motions are relative.The motion (velocity) of an object depends on which frame of reference is used to measure it. We say the measured velocity is relative to the chosen frame of reference. Usually the ground is the preferred choice as the reference frame and very often it is not specifically me ...
Milanković`s Analysis of Newton`s Law of Universal Gravitation
... mutually attracted by centripetal forces”, p. 216, Newton wrote: “I have been presenting so far the learning about the motion of bodies attracted towards a stationary center, which hardly exists in nature. Attraction always originates from the body, and according to the third law, the action of bodi ...
... mutually attracted by centripetal forces”, p. 216, Newton wrote: “I have been presenting so far the learning about the motion of bodies attracted towards a stationary center, which hardly exists in nature. Attraction always originates from the body, and according to the third law, the action of bodi ...
Example 4-6
... 3. Choose a convenient coordinate system. 4. List the known and unknown quantities; find relationships between the knowns and the unknowns. 5. Estimate the answer. 6. Solve the problem without putting in any numbers (algebraically); once you are satisfied, put the numbers in. 7. Keep track of dimens ...
... 3. Choose a convenient coordinate system. 4. List the known and unknown quantities; find relationships between the knowns and the unknowns. 5. Estimate the answer. 6. Solve the problem without putting in any numbers (algebraically); once you are satisfied, put the numbers in. 7. Keep track of dimens ...
5.Rotational_P9sim_09
... • Measure of the resistance of an object to having its rotational motion changed. • L = I×ω – L = angular momentum – I = rotational inertia – ω = rotational velocity (recall: v = rω) ...
... • Measure of the resistance of an object to having its rotational motion changed. • L = I×ω – L = angular momentum – I = rotational inertia – ω = rotational velocity (recall: v = rω) ...
Definition of linear momentum
... From Newton’s third law the vector sum of internal forces = 0 Forces acting from objects that are outside from the system are external ones. In order to know if a force is external or internal one we must clearly define what is the system! - The net impulse of internal forces is zero (The net force ...
... From Newton’s third law the vector sum of internal forces = 0 Forces acting from objects that are outside from the system are external ones. In order to know if a force is external or internal one we must clearly define what is the system! - The net impulse of internal forces is zero (The net force ...
Chapter 4 Forces and Newton’s Laws of Motion continued
... The ONLY thing a person can feel is a stretch or compression of your body parts, mostly at a point of contact. If your body is not stretched or compressed, you will feel like you are floating. Gravity ALONE will not stretch or compress your body. Hanging from the board, the board also pulls up on yo ...
... The ONLY thing a person can feel is a stretch or compression of your body parts, mostly at a point of contact. If your body is not stretched or compressed, you will feel like you are floating. Gravity ALONE will not stretch or compress your body. Hanging from the board, the board also pulls up on yo ...
1. Five equal 2.0-kg point masses are arranged in the x
... 13. A wheel of diameter 3 cm has a 4-m cord wrapped around its periphery. Starting from rest, the wheel is given a constant angular acceleration of 2 rev/s2. The cord will unwind in A. 12.5 s B. 8.5 s C. 6.5 s D. 3.5 s E. 1.5 s 14. A disk with a rotational inertia of 5 kgm2 and a radius of 0.25 m ro ...
... 13. A wheel of diameter 3 cm has a 4-m cord wrapped around its periphery. Starting from rest, the wheel is given a constant angular acceleration of 2 rev/s2. The cord will unwind in A. 12.5 s B. 8.5 s C. 6.5 s D. 3.5 s E. 1.5 s 14. A disk with a rotational inertia of 5 kgm2 and a radius of 0.25 m ro ...
Now
... start an object moving because of inertia. It wants to stay where it is. It takes an extra strong force to STOP something once it is moving because of inertia. It wants to keep on moving. ...
... start an object moving because of inertia. It wants to stay where it is. It takes an extra strong force to STOP something once it is moving because of inertia. It wants to keep on moving. ...
The Nature of Force
... The overall force on an object after all the forces are added together is called the net force. When there is a net force acting on an object, the forces are said to be unbalanced. Unbalanced forces can cause an object to start moving, stop moving, or change directions. Unbalanced forces acti ...
... The overall force on an object after all the forces are added together is called the net force. When there is a net force acting on an object, the forces are said to be unbalanced. Unbalanced forces can cause an object to start moving, stop moving, or change directions. Unbalanced forces acti ...
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.