Question #7aa60

1 Answer
Feb 2, 2018

#400# joules

Explanation:

Work is defined as the product of the force applied and the distance the object moves as a result of that force:

#W=F*Deltad costheta#

where #theta# is the angle between the force and the displacement.

If the force in this problem is in the same direction as the displacement, then #theta = 0°# and #costheta=1# (so we can ignore it this time).

So, #W=F*DeltaD = 40 N xx 10 m = 400 Nm#

The unit "newton-metre" is known as a joule (of energy).