Civil Engineering - Applied Mechanics - Discussion

Discussion Forum : Applied Mechanics - Section 5 (Q.No. 29)

Applied Mechanics

29.

If a ball which is dropped from a height of 2.25 m on a smooth floor attains the height of bounce equal to 1.00 m, the coefficient of the restitution between the ball and floor, is

0.25

0.50

0.67

0.33

0.75

Answer: Option

Explanation:

No answer description is available. Let's discuss.

Discussion:

11 comments Page 2 of 2.

Abhay said: 10 years ago

The coefficient, Cr is defined as the ratio of relative speeds after and before an impact, taken along the line of the impact.

In this case,

Cr = √(h/H) = √(1/2.25) = 0.67.

0.5 is wrong.