Question

State giving reasons whether work done is positive negative or zero
a simple pendulum suspended by a string is stationary​

Answer 1

Answer:

1) Positive = Force and displacement in same direction.

2) Positive = Force of gravity and displacement by falling  are in same direction.

3) Zero = No displacement, therefore, no work.

4) Negative = Force and displacement in opposite direction.

5) Negative = Force and displacement in opposite direction.

Thx ❣