A woman pushes a 24 kg lawnmower at a steady speed. Sheexerts a 140 N force in a

Question

A woman pushes a 24 kg lawnmower at a steady speed. Sheexerts a 140 N force in a direction 21 degrees below thehorizontal. The acceleration of gravity 9.8 m/s2 . Find the magnitude of the vertical force this lawnmower exertson the lawn. Ans. in units of N. A woman pushes a 24 kg lawnmower at a steady speed. Sheexerts a 140 N force in a direction 21 degrees below thehorizontal. The acceleration of gravity 9.8 m/s2 . Find the magnitude of the vertical force this lawnmower exertson the lawn. Ans. in units of N.

Explanation / Answer

the total vertical force has 2 parts: the weight and thevertical component of the pushing force

24*9.81+140sin21=285.61 N

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