A mass M tied to a light string is moving in a vertical circle. The tension in the string at the top is TT and TB at the bottom
of the circle. The work done by the tension on M as it moves from bottom to top is:
1 answer:
Answer:
Explanation:
Tension provides centripetal force in the circular motion . In circular motion work done by force = torque x angle
torque is zero as , centripetal force passes through axis of rotation that is center.
So work done by centripetal force = 0
So work done by tension on M = 0
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<u>Given;</u>
mass m = 75 kg
acceleration a = 24.5 ms²
<em>F = ma </em>
F = 75 kg * 24.5 ms²
= 1837.5 kg ms².
Math and the study of motion
I think its b because when there is unbalanced forces it accelerates.
Hope this helps you out
The average angular acceleration of the fan is
The number of revolutions after time 
is given by
Acceleration is assumed to be constant, so 
and over the 2 second interval we have
so the answer is A.
Answer:
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Explanation:
