Applied Mechanics and Graphic Statics
Pick up the correct statement from the following. A rubber ball when strikes a wall rebounds but a lead ball of same mass and velocity when strikes the same wall, falls down

None of these
Momentum of rubber ball is less than that of lead ball
Rubber and lead balls undergo equal changes in momentum
Change in momentum suffered by lead ball is less that of rubber ball

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Applied Mechanics and Graphic Statics
Pick up the incorrect statement from the following. In a simple harmonic motion

Acceleration is zero at the mean position
Velocity is minimum at the end of the stroke
Acceleration is minimum at the end of the stroke
Velocity is maximum at its mean position

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