Two identical 200-g are held pressed against a spring, one form each end of the

Question

Two identical 200-g are held pressed against a spring, one form each end of the spring. The spring has a force constant of 100 N/m and is not connected to any object. The two objects and the spring are on a horizontal and frictionless floor. The compression of the spring is 10 cm. What is the maximum speed each object attains when we let go of the them simultaneously?

a) 14.1 m/s

b) 10.0 m/s

c) 7.07 m/s

d) 5.0 m/s

A 200-g object is held pressed agaist a vertical spring with its lower end fixed on the floor. The spring has a force constant of 100 N/m and is not connected to the object.

If the compression of the spring is 10 cm, what is the maximum speed the object attains when we let go of it?

a) .986 m/s

b) 2.236 m/s

c) 1.797 m/s

d) 2.193 m/s

Explanation / Answer

This is multiple question

for second question

The formula for maximum speed of the object is

v_max = w A

          = sqrt k/m A

         = sqrt 100 N/m/ 0.2 kg ( 0.1 m)

        = 2.236 m/s

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