Question

1. A particle moving with simple harmonic motion has maximum displacement of 50 cm angular velocity of 1.02rad/s. Calculate the (a) the maximum velocity (b) maximum acceleration of the particle (c) the speed and acceleration of the particle when it is 30cm from the center of the oscillation (d) the period

2. A 500g car moving with a velocity of 20cm/s collides with utility pole brought to rest in 0.3sec .
Find the magnitude of force exerted on the car during collision?

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