A force of 77 N is used to move a desk 1.5 m. How much work was done?
1 answer:
You might be interested in
Answer:
15.10m/s
Explanation:
The mass of the ball(m)=400g = 0.4kg
The radius of the string is(r)=15m
The tension in the string is(T)=10N
The acceleration due to gravity =
The tension in the string when the body is at the bottom is given by
To find the speed of the ball, we make v the subject of the formula
Therefore,
The speed of the ball = 15.10m/s