A woman pushes a lawn mower with a force of 80 N. If the handle of the lawn mower is 40 above the horizontal, how much downward force is being exerted on the ground?
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Given:
A woman pushes a lawn mower with a force of 80 N.
To find:
If the handle of the lawn mower is 40 above the horizontal, how much downward force is being exerted on the ground?
Solution:
From given, we have,
The lawn mower is 40 above the horizontal
A woman pushes a lawn mower with a force of 80 N.
The verticle force, F is given by,
F↓ = N sin θ
F = 80 × sin 40°
∴ F = 51.4 N
∴ The downward force being exerted on the ground is 51.4 N
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