Homework Help: physics

Posted by ally on Friday, February 25, 2011 at 4:47pm.

A woman pushes a lawn mower with a con-
stant force of 112 Newtons at an angle of
37 with respect to the horizontal. The lawn
mower moves at a speed of 20 cm/sec.
What is her power output? (1 hp = 746
Watts)

physics - Damon, Friday, February 25, 2011 at 5:21pm
v = .2 m/s
F = 112 cos 37

power = F v = .2 * 112 cos 37 Watts

to get HP divide by 746

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