Impulse $--$ #$3$

Name

Number $3$

The happy ball and sad ball are each are released from rest from the same spot on an inclined track, so that they move the same speed when they reach the bottom.

At the bottom, they collide with a block of wood. The happy ball bounces backward; the sad ball sticks, almost, to the wood. Both are in contact with the wood for about the same amount of time.

In the equation $(p_f-p_i)=F_t,$ which variable$($s$)$ are the same for both balls?

Answer:

Justification:

For which ball is the change in momentum $(p_f-p_i)$ larger during the collision with the wood?

Answer:

Justification:

Which ball experiences a larger force while it is in contact with the wood?

Answer:

Justification with an equation or false calculation: