1. Why is it important experimentally that when the mass is revolving at a unifo
ID: 1901412 • Letter: 1
Question
1. Why is it important experimentally that when the mass is revolving at a uniform velocity we make our measurements with the mass hanging vertically?2. If the mass were revolved at a greater velocity, the spring would be stretched a greater amount. How does this affect the force exerted by the spring on the mass?
Tie a mass to a string and whirl that mass on the string in a big circle over your head. The only thing keeping that mass from flying off in a straight line is that string. You are constantly pulling that mass inward as you swing it around with a force that is transferred along the string as a tension in the string. So the force that the mass experiences is a tension force acting perpendicularly to the mass
Explanation / Answer
a) when the mass is revolving at a uniform velocity or when it is moving it g value varies. b) the force a spring exerts on a mass is F = - k x where x is the displacement of the mass; if the spring is stretched more, the force it exerts is greater (to match the increased centripetal force)
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