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Explanation:
A wall that is acted upon by a force of 20N does not move suggests that no work has been done on the wall.
Work done is the force applied to move in the direction of the applied force.
Work done = force x distance.
Since the distance is 0, the work done on the body too is zero.
Work is only done when forces moves a body through a given distance.
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Impulse = Force * time
Impulse = 500N *0.5 s =250 N*s
The first opiton is the answer A)<span>Rahul’s weight
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Mechanical waves transfer energy by inducing vibrations in the propagation medium.
