Slides posted after class - University of Toronto Physics
... “Since the earth is orbiting around the sun, and so it's constantly accelerating in uniform circular motion, how come we on earth don't feel these effects but instead seem to be in an inert frame of reference?” Harlow answer: Great question! There are two reasons. #1 the effect of acceleration i ...
... “Since the earth is orbiting around the sun, and so it's constantly accelerating in uniform circular motion, how come we on earth don't feel these effects but instead seem to be in an inert frame of reference?” Harlow answer: Great question! There are two reasons. #1 the effect of acceleration i ...
Nov 2003 - Vicphysics
... KE converted into spring pot’l energy, so ½ mv2 = ½ kx2, (1) so compression, x, = sqrt (200x 4/3.2 x 105) (1) = 0.05m (1) Initial momentum is to the left with a value of 400kgm/s (1) Final momentum is to the right with a value of 400 kgm/s (1) Change in momentum of car = 800 kgm/s to the right (1), ...
... KE converted into spring pot’l energy, so ½ mv2 = ½ kx2, (1) so compression, x, = sqrt (200x 4/3.2 x 105) (1) = 0.05m (1) Initial momentum is to the left with a value of 400kgm/s (1) Final momentum is to the right with a value of 400 kgm/s (1) Change in momentum of car = 800 kgm/s to the right (1), ...
Free fall
... during which of the 4 seconds does the ball’s speed increase the most? • If you drop a ball from a height of 4.9 m, it will hit the ground 1 s later. If you fire a bullet exactly horizontally from a height of 4.9 m, it will also hit the ground exactly 1 s later. Explain. • If a golf ball and a bowli ...
... during which of the 4 seconds does the ball’s speed increase the most? • If you drop a ball from a height of 4.9 m, it will hit the ground 1 s later. If you fire a bullet exactly horizontally from a height of 4.9 m, it will also hit the ground exactly 1 s later. Explain. • If a golf ball and a bowli ...
Newton`s Laws and Force Review
... 18. According to Newton’s second law, the acceleration of an object ______ its mass. a. is directly proportional to b. is inversely proportional to c. doesn’t depend on 19. The acceleration produced by a net force on an object is _____. a. directly proportional the magnitude of the net force. b. in ...
... 18. According to Newton’s second law, the acceleration of an object ______ its mass. a. is directly proportional to b. is inversely proportional to c. doesn’t depend on 19. The acceleration produced by a net force on an object is _____. a. directly proportional the magnitude of the net force. b. in ...
South Pasadena
... A cup of water is being swung in a horizontal circle of radius 0.75 m at a constant speed. a) What is the minimum speed of the cup of water to negotiate the top of the loop without water spilling out of the cup? b) What is the frequency of this minimum speed? HINTS: First draw a FBD of the water at ...
... A cup of water is being swung in a horizontal circle of radius 0.75 m at a constant speed. a) What is the minimum speed of the cup of water to negotiate the top of the loop without water spilling out of the cup? b) What is the frequency of this minimum speed? HINTS: First draw a FBD of the water at ...
Momentum
... Important points about linear momentum • Linear momentum is a vector quantity; it is important to consider the direction in which the colliding objects are moving before and after the collision. • Momentum depends on the velocity of the object, and the velocity depends on the choice of the reference ...
... Important points about linear momentum • Linear momentum is a vector quantity; it is important to consider the direction in which the colliding objects are moving before and after the collision. • Momentum depends on the velocity of the object, and the velocity depends on the choice of the reference ...
Kinetics of particles Newton`s Second Law
... Step 1 is a statement of Newton’s Second Law in preparation for drawing the two diagrams, the FBD and the MAD. In step 2 the FBD and MAD are drawn. This just means drawing the object of interest twice. Note that the coordinate system is shown too. There are several ways to draw an MAD, the s ...
... Step 1 is a statement of Newton’s Second Law in preparation for drawing the two diagrams, the FBD and the MAD. In step 2 the FBD and MAD are drawn. This just means drawing the object of interest twice. Note that the coordinate system is shown too. There are several ways to draw an MAD, the s ...
Practice Test.100A 4-5
... 6. A box given a push so that it slides across the floor. How far it will go given that the coefficient of kinetic friction µk =0.20 and push imparts an initial speed of 4 m/s? The kinetic friction force provides the acceleration. For ·F = ma we have x-component: – µkF N = m a; y-component: F N – mg ...
... 6. A box given a push so that it slides across the floor. How far it will go given that the coefficient of kinetic friction µk =0.20 and push imparts an initial speed of 4 m/s? The kinetic friction force provides the acceleration. For ·F = ma we have x-component: – µkF N = m a; y-component: F N – mg ...
Topics Covered
... 20. Surface currents in the ocean are caused by what? 21. When the absorption lines of a galaxy shift toward the red end of the spectrum, it means that the galaxy is moving _________________________ the earth. 22. _________________________ can transfer thermal energy through space where there is no ...
... 20. Surface currents in the ocean are caused by what? 21. When the absorption lines of a galaxy shift toward the red end of the spectrum, it means that the galaxy is moving _________________________ the earth. 22. _________________________ can transfer thermal energy through space where there is no ...
Document
... system of rigid bodies pass through a given point O, the angular momentum of the system about O is conserved. ...
... system of rigid bodies pass through a given point O, the angular momentum of the system about O is conserved. ...
Do Now: What is gravity?
... • In a similar way, an arrow flying toward a target is a projectile. • Because of the force of gravity, the arrow will fall as it flies toward the target. • So if you try to hit the bull’s-eye, you must aim above it to account for gravity’s pull. • When you throw a projectile at an upward angle, th ...
... • In a similar way, an arrow flying toward a target is a projectile. • Because of the force of gravity, the arrow will fall as it flies toward the target. • So if you try to hit the bull’s-eye, you must aim above it to account for gravity’s pull. • When you throw a projectile at an upward angle, th ...