Physics-
General
Easy
Question
A string is wrapped round a log of wood and it is pulled with a force F as shown in the figure Choose the correct statement(s)
I Tension T in the string decreases with increase in q
- only I is true
- both are true
- only II is true
- both are wrong
The correct answer is: only I is true
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A child is swinging a ball of mass M around on a light spring which has spring constant k. The ball describes a horizontal circle a distance h above the floor. The stretched spring has a length l and makes an angle q with the vertical as shown below. The acceleration due to gravity is g. Neglect air resistance.
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