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Question
List all the forces acting on (a) the pulley A, (b) the boy and (c) the block C in figure.
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Solution
Forces acting on the pulley A :
- A tension exerts electromagnetic force between the string and pulley A.
- A pair of gravitational force between the Earth and pulley.
Forces acting on the boy :
- A tension exerts electromagnetic force between the string and the boy.
- A pair of gravitational force between the Earth and the boy.
Forces acting on the block C :
- A tension exerts electromagnetic force between the string and block C.
- A pair gravitational force between block C and the Earth.
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