A cart moves along a straight track while four constant forces act on it as listed below

PHYSICS · Multi-part · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

A cart moves

10\,\text{m}

along a straight track while four constant forces act on it as listed below.

Force	Magnitude (N)	Angle with displacement
$F_1$	20	$0^\circ$
$F_2$	10	$60^\circ$ (measured from the forward direction)
$F_3$	15	$90^\circ$
$F_4$	5	$180^\circ$

(a) Compute the work done by each force during the

10\,\text{m}

displacement. (b) Determine the net work done on the cart. (c) Comment on the contribution, if any, of

F_3

to the net work.