Question

Conservation of Momentum PHY 121 Lab 10 7) Now seeing what you saw, were you right? What can you say about the momentum before the collision and the momentum after the collision? Final Total Kinetic Energy after the collision: nǐ--%Error_07__ Now change the red cart to being heavier than the blue cart and the blue cart is again initially stationary (0m/s) Initial momentum: 10 N Initial Kinetic Energy: 25 J 8.) Write what you expect to happen to the carts after they collide. Which will be traveling fasterlslower and in what direction? (This will not be graded according to right or wrong. It is just important to write an honest statement as to what you think will happen.) Click start in the upper right cormer. 9.) How right were you in your hypothesis of what you thought would happen? Explain why the carts behaved the way they did after the collision using terms like inertia, force, momentum. Total Momentum after collision: 10-1 N Total Kinetic Energy after the collision: MHL %Error 10-1M& a.mp %Error: 10.) How did the total momentum before the collision of both carts compare to the total momentum after the collision? How did the total kinetic energy before the collision compare to the total kinetic energy after the collision?

Answer 1

7) mv + 0 = 0 + mv

Total momentum before collisim } = Total momentum after collision.

8 ) Bothe carts are moving along the direction of red cart and lighter one moves faster. Only part of momentum transfers from red to blue cart and blue should have more velocity since its mass is small.

9 ) Blue cart is being at rest before collision

---> Rate of change of momentum is the force,

---> Momentum is conserved. Momentum of red cart decreases and blue cart increases.

10 ) Total momentum before collision = Total momentum after collision

[ Total kinetic energy before collision = Total kinetic energy after collision ] No friction