Question

4. A billiard ball rolls from rest down a smooth ramp that is 8.0 m long. The
acceleration of the ball is constant at 2.0 m/s
1. What is the speed of the ball when it is hallway down the ramp?
1. What is the final speed of the ball?
ill. How long does the ball take to roll the first 4.0 m?
iv. How long does the ball take to travel the final 4.0 m?

Answer 1

Answer:

Explanation:

The formula S=(at^2)/2 will be used during the entire explanation.

1. 4 = (2t^2)/2

t = 2 s.

V = at = 2 * 2 = 4 m/s

2. 8 = (2t^2)/2

t = 2.8 s

iii. 2s

iv. 2.8 - 2 = 0.8s

Hope you understand)