A gun fires a bullet of mass 17 grams out of a barrel 24 cm long. The bullet is accelerated down the length of the barrel with an average force of 16 Newtons.

Using the Impulse-Momentum Theorem, determine the velocity with which the bullet exits the barrel.

What average force is exerted by the individual holding the gun?

The individual firing the gun has mass 63 kg and is standing on a nearly frictionless skateboard, initially at rest. With what velocity will the individual be moving immediately after firing the gun?

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A gun fires a bullet of mass 17 grams out of a barrel 24 cm long. The bullet is accelerated down the length of the barrel with an average force of 16 N.

a) Using the Impulse-Momentum Theorem, determine the velocity with which the bullet exits the barrel.

b) What average force is exerted by the individual holding the gun?

c) The individual firing the gun has mass 63 kg and is standing on a nearly frictionless skateboard, initially at rest. With what velocity will the individual be moving immediately after firing the gun?

Solution: a) As per impulse-momentum theorem, impulse applied on a body is equal to change in its momentum.

FΔt = Δ(mv) = ...

Solution Summary

This solution provides a step-by-step explanation of the given velocity problems.

A volleyball is spiked so that its incoming velocity of +3.8 m/s is changed to an outgoing velocity of -19 m/s. The mass of the volleyball is 0.38 kg. What impulse does the player apply to the ball?

A bullet, of mass 20g, traveling at 350 m/s, strikes a steel plate at an angle of 30degrees with the plane of the plate. it ricochets off at the same angle, at a speed of of 320 m/s. What is the magnitude of the impulse that the wall gives to the bullet?
a. 300 Ns
b. 0.3 Ns
c. 0.52 Ns
d. 6.7 Ns.

See attached file for full problem description.
1. A 4.0-kg block slides along a frictionless surface with a constant speed of 5.0 m/s. Two seconds after it begins sliding, a horizontal, time-dependent force is applied to the mass. The force is removed eight seconds later. The graph shows how the force on the block varies wit

1. A 0.2 kg baseball is traveling at 40 m/s. After being hit by a bat, the ball rebounds with a velocity of 509 m/s. Find
a) the impulse and
b) the average force exerted by the bat if the ball and bat are in contact for 0.002 s.
2. A 0.11 kg tin can is resting on top of a 1.7 m high fencepost. A 2.0 g bullet is fired hori

Question: A 50 kg cart is moving across a friction-less floor at 2 m/s. A 70 kg boy, riding the cart, jumps off so that he hits the floor with zero velocity.
1. What impulse did the boy give to the cart?
2. What was the velocity of the cart after the boy jumped?

A bullet of mass M= .0052 kilogram moving horizontally at speed V=672 m/sec, stikes a stationary wood block of mass m= 0.700 kilogram on a level frictionless surface. The bullet emerges with its speed reduced to S= 428 m/sec. Find the speed of the wood block after the bullet emerges.

See attached file.
A 8.0 kg bowling ball is rolling down the alley with a velocity of 2.9 m/s. For each impulse, a and b, as shown in Figure 9-3, find the resulting speed and direction of motion of the bowling ball.
_________m/s in the same direction or in the opposite direction?
_________ m/s

A 31.0 kg gun is resting on a frictionless surface. The gun fires a 50.0 g bullet with a muzzle velocity of 306.0 m/s. Assume that air resistance is negligible.
(a) Calculate the momenta of the bullet and the gun after the gun is fired.
kg·m/s (bullet)
kg·m/s (gun)
(b) Calculate the kinetic energy of both the bulle