Question

the total time taken for a bouncing ball to come to rest if the initial height is h and the coefficient of restitution is e is given by the formula :
T = [ ⟨ 1 + e ⟩ / ⟨ 1 - e ⟩ ] * ⟨ √ ( 2 * h / g ) ⟩

Answer 1

Answer:

Initial speed of ball just before it collide with the floor from height h is given by

now after it collide with the floor with rebound height is h/2 is given by

now we have to use the formula of coefficient of restitution

so the coefficient of restitution is 0.707 in this collision

Explanation:

please mark as brainlist

Answer 2

If there happens to be a little heap of gunpowder lying on the table where the ball hits it, it may bounce back with a faster speed than it had immediately before collision. If the collision is somewhat inelastic it will then rise to a height h1=e2h0 and it will take a time et to reach height h1 .