Ablock rides on a piston that is moving vertically with simple harmonic motion. (a) if the shm has period 2.68 s, at what amplitude of motion will the block and piston separate? (b) if the piston has an amplitude of 6.23 cm, what is the maximum frequency for which the block and piston will be in contact continuously?

Part a)

Part b)

Explanation:

Part A)

As we know that time period of the motion is given as

so we have

now at the point of maximum amplitude the force equation when Normal force is about to zero is given as

so we have

Part b)

Now if the amplitude of the SHM is 6.23 cm

and now at this amplitude if object will lose the contact then in that case again we have

so now we have

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle