March 31, 2015

Homework Help: Physics -Impulse- part 2

Posted by Isis on Sunday, February 24, 2013 at 7:48pm.

1) A 0.50 kg object is at rest. A 3.00 N force to the right acts on the object during a time interval of 1.50 s
a) What is the impulse?
b) What is the velocity of the object at the end of this time interval?

2) A 2250 kg car traveling to the west at 20.0 m/s slows down uniformly and comes to a stop.
a) What is the impulse delivered to the car?
b) How long it would take the car to come to a stop if the force on the car is 8450 N to the east?

3) A 2.5 kg ball strikes a wall with a velocity of 7.5 m/s to the right. The ball is in contact with a wall for 0.25 s.
a)What is the change in momentum?
b) What is the impulse delivered?
c) What is the constant force exerted on the ball by the wall?

4) A 0.15 kg baseball moving at +26 m/s is slowed to a stop by a catcher who exerts a constant force of -390 N.
a) What is the change in momentum?
b) What is the impulse delivered?
c) how long does it take this force to stop?

.need help!! :)

P= Fd/t

Thank You!! :) <3 i really need help :)

Answer this Question

First Name:
School Subject:

Related Questions

Physics - In a 1-dimensional problem, a single force acts on a 10 kg object and ...
Please help with Physics Quickly - 1. How are impulse and momentum related? (...
physics - A 0.7 kg object is at rest. A 6.5 N force to the right acts on the ...
Physics - The force on an object is described as a function of time equation: F(...
Physics - Object A crashes into object B. A is more massive than B. Which is a ...
physics - a constant force can at on an object for diferrent lengths of time. as...
Physics - Which of the following statements are true? Select all that apply. ...
physics - The force shown in the force vs. time diagram in the figure below acts...
pop - 4. If your speeding car slams into a haystack and comes to rest, how will ...
Physics Mechanics - An object experiences an impulse o 43.78 N-s for a time ...