Author Question: A 0.250-kg rubber ball is dropped from a height of 2.00 m. It hits the floor and rebounds to a ... (Read 102 times)

lindiwe · **on:** Jul 29, 2018

A 0.250-kg rubber ball is dropped from a height of 2.00 m. It hits the floor and rebounds to a height of 1.80 m. What is the magnitude of impulse the floor applies to the ball?

A)

0.950 Ns

B)

1.14 Ns

C)

0.0804 Ns

D)

1.33 Ns

E)

3.05 Ns

Question 2

A hockey puck slides off the edge of a table with an initial velocity of 20.0 m/s. The height of the table above the ground is 2.0 m. What is the magnitude of the velocity of the puck just before it touches the ground?

A)

21 m/s

B)

22 m/s

C)

24 m/s

D)

25 m/s

E)

6.3 m/s