11. Momentum & Impulse

What is the primary role of airbags in vehicles in terms of impulse and momentum?

An object receives an impulse. Which of the following statements is true?

Which statement accurately describes $J$ (impulse) in physics?

A ball of mass $m$ is moving horizontally with speed $v$ toward a wall. It strikes the wall and rebounds in the opposite direction with the same speed $v$. What is the magnitude of the impulse delivered by the wall to the ball?

Which of the following best describes the relationship between impulse and momentum in classical mechanics?

A constant force $F_{\max }$ acts for $t$ = $0.12$ s, delivering an impulse of $9.6Ns$. What is the value of $F_{\max }$?

A $250g$ particle is subjected to a constant force of $4N$ for $3s$. What is the magnitude of the impulse delivered to the particle by the force?

A $3.0\mathrm{kg}$ particle experiences a constant force of $6.0N$ for $4.0s$. What is the impulse delivered to the particle during this time?

In a graph of $F$ (force) versus $t$ (time), what represents the impulse delivered by the force?

In the context of linear motion, how does the impulse delivered to an object relate to its change in momentum?

You throw a 100-g ball with 30m/s. If the ball is in your hand for 0.2s during the throw, a) calculate the impulse

you deliver to it. b) Calculate the average Force that you exert on the ball.

You catch a 0.6 kg ball initially moving with 10 m/s. Calculate the impulse delivered to the ball during the catch.

To warm up for a match, a tennis player hits the 57.0-g ball vertically with her racket. If the ball is stationary just before it is hit and goes 5.50 m high, what impulse did she impart to it?

A 550 g cart is released from rest on a frictionless, 30° ramp, 120 cm from the bottom of the ramp. It rolls down, bounces off a rubber block at the bottom, and then rolls 80 cm back up the ramp. A high-speed video shows that the cart was in contact with the rubber block for 25 ms. What was the average force exerted on the cart by the block?