Question

A ball falls from a height of 10m onto a hard horizontal floor and repeatedly bronzes if the coefficient of restitution is 1 by root 2 what is the total distance travelled by the ball before it cases to Reborn

Answer 1

Answer:

Horizontal angle = 30°

Horizontal distance = 20 m

Height = 5 m

We need to calculate the initial velocity

Using equation of trajectory

Where,

y = vertical distance

x = horizontal distance

u = initial velocity

g = acceleration due to gravity

Put the value into the formula

Hence, The initial speed of the ball is 20 m/s.