Physics
posted by Emily .
Okay I only need help with part (c), but I'll put down the whole problem.
a. What impulse occurs when an average force of 10 N is exerted on a cart for 2.5 s? I got 25 N x S (NewtonsSeconds)
b. What change in momentum does the cart undergo? I got 25 kg x m/s.
c. If the mass of the cart is 2 kg and the cart is initially at rest, calculate its final speed.
This sheet I have says the answer to part (c) is 12.5 m/s, but I have NO CLUE how to get that answer. Plz help!!!
Respond to this Question
Similar Questions

Physics
A 125 kg fullback is running at 5.0 m/s to the east and is stopped in 0.75 s by a headon tackle by a tackler running due west. a) Calculate the original momentum of the fullback. i did this and got 625 kg m/s b) Calculate the impulse … 
physics please hep
Suppose that the graph of force vs. time for a very unusual spring has only straight lines. The cart hits the spring at t = 3.00 s, so force F = 0 up to that point. Then, after t = 3.00 s, the force increases linearly until it reaches … 
physics please help
suppose a cart of mass m = 969 g is initial moving at speed v0 = 5.17 m/s. It strikes a spring attached to a fixed wall, comes to a stop, and bounces back at speed vf = 4.48 m/s. Assume the track is frictionless. a) Find the magnitude … 
help me physics
suppose the cart has mass m = 203 g, and it strikes the clay at speed vo = 5.24 m/s and comes to a dead stop. Assume the track is frictionless, and the clay is crushed inward by 1.83 cm. a)Find the magnitude of the impulse exerted … 
physics
what impulse occurs when an average force of 10n is exerted on a cart of 2.5 s? 
Physics Impulse
1.)A 0.5 kg hockey puck moving at 35 m/s hits a straw bale, stopping in 1 s. a) What impulse is delivered to the ball? 
Physics Impulse
1.)A 0.5 kg hockey puck moving at 35 m/s hits a straw bale, stopping in 1 s. a) What impulse is delivered to the ball? 
Physics Impulse
A 2 kg cart rolls across the floor and runs into the wall and sticks. Before the collision the cart has a velocity of 4 m/s in the x direction. The collision took place in 0.1 s. 1) What was the cart's momentum before the collision? 
physics impulse
A 2 kg cart rolls across the floor and runs into the wall and sticks. Before the collision the cart has a velocity of 4 m/s in the x direction. The collision took place in 0.1 s. 1) What was the cart's momentum before the collision? 
physics
Two carts are in contact on a horizontal frictionless surface. Cart 'A' has a mass of 3 kg, and cart 'B' a mass of 2 kg. (a) Find the force F on 'A' needed to give the two carts an acceleration of 0.8 m/sec2 . What is then the force …