Question

What is the work done by a 20 newton force applied at an angle of 45.0° to move a box a horizontal distance of 40 meters?

Answer 1

Your answer would be B.

votre réponse serait B

Answer 2

Explanation :

Given that,

Force, F = 20 N

The force is applied at an angle of 45 degrees to move a box a horizontal distance of 40 meters. We have to find the work done by the force. It is given by :

W = F. d

$W=Fd\ cos\theta$

$W=20\ N\times 40/ m cos(45)$

W = 565.6 Joules

or

$W=5.6\times 10^2\ Joules$

Hence, this is the required solution.