If a ball which is dropped from a height of 2.25 m on a smooth floor attains the

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Question
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
Options
A. 0.25
B. 0.50
C. 0.67
D. 0.33
E. 0.75

Correct Answer

0.50

Applied Mechanics problems

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1. On a mass m describing a circular path of radius r, the centrifugal force
Options
A. acts tangentially to the circular path
B. acts towards the centre of rotation
C. acts away from the centre of rotation
D. is

3. Pick up the incorrect statement from the following. In a simple harmonic motion
Options
A. velocity is maximum at its mean position
B. velocity is minimum at the end of the storke
C. acceleration is minimum at the end of the stroke
D. acceleration is zero at the mean position.

4. The displacement of a particle which moves along a straight line is given by S = 4t³ + 3t² - 10 where S is in meters and t is in seconds. The time taken by the particle to acquire a velocity of 18 m/sec from rest, is
Options
A. sec
B. 1 sec
C. 1.5 sec
D. 1.5 sec.

9. A particle moving with a simple harmonic motion, attains its maximum velocity when it passes
Options
A. the extreme point of the oscillation
B. through the mean position
C. through a point at half amplitude
D. none of these.

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