When the magnitude of the force acting on a body varies with its displacement
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
When the magnitude of the force acting on a body varies with its displacement, the first quantity that must be obtained to calculate the average power over a given time interval is the
(a) the impulse delivered during the interval
(b) the average force acting during the interval
(c) the total work done by evaluating ∫F⋅dr
(d) the instantaneous acceleration at the mid-point of the motion