Physics Force Question

Question

A student exerts a force of 72.0 N along the handle of a 196 N lawn mower to push it across the lawn at an angle of 39° with the horizontal. Determine the normal force given to the lawn mower by the ground? Draw a free-body diagram to help.

Answer 1

The vertical component of the force will add to the weight of the lawnmower

Fn = weight + 72 Sin 39 = 196 + 45.3 =241.3 N