A body is pulled across a horizontal surface by two constant forces given in vector…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A body is pulled across a horizontal surface by two constant forces given in vector form: F1=4^+3^N and F2=−2^+5^N. During this interval the body undergoes a displacement s=6^+8^m.
(a) Calculate the work done by each force separately.
(b) Determine the magnitude and direction of the resultant force.
(c) Find the net work done on the body over the given displacement.
(d) Verify numerically that the result obtained in (c) equals the work done by the resultant force found in (b).