Answer:
The cat will have <span>36J</span> of kinetic energy.
Same speed, because mass is neglected. The things that affect the speed are the distance and speed of the rock.
Answer:
Angular acceleration, is 
Explanation:
Given that,
Initial speed of the drill, 
After 4.28 s of constant angular acceleration it turns at a rate of 28940 rev/min, final angular speed, 
We need to find the drill’s angular acceleration. It is given by the rate of change of angular velocity.

So, the drill's angular acceleration is
.
Answer:
increased with the same rate as momentum
25m north east hope this helps