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November 24, 2014

Homework Help: 12th grade Physics

Posted by HR on Sunday, October 12, 2008 at 3:01pm.

A boy pushes a lawn mower with a mas of 17.9 kg starting from rest across a horizontal lawn by applying a force of 32.9N straight along the handle, which is inclined at an agle of 35.1 degrees above the horizontal. The magnitude of the mower's accelerations is 1.37m/s^2, which lasts for 0.58 s after which the mower moves at a constant velocity. Determine the magnitude of:
A)the normal force on the mower
B)the frictional force on the mower
C)the maximum velocity
d) the force applied by the boy needed to maintain the constant velocity.

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