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27 Nov 2019
<p>a boy pushes a lawn mower (m=17.9kg) starting from rest across a horizontal lawn by applying a force of 32.9N straight along the handle, which is inclined at an angle of 35.1 above the horizontal. The magnitude of the mowers acceleration is 1.37m/s<sup>2</sup>, which lasts for 0.58s, after which the mower moves at a constant velocity. Determine the magnitude of<br />(a) the normal force <br />(b) the frictional force on the mower<br />(c) the maximum velocity of the mower<br />(d) the force applied by the boy needed to maintain the constant velocity.</p>
<p>a boy pushes a lawn mower (m=17.9kg) starting from rest across a horizontal lawn by applying a force of 32.9N straight along the handle, which is inclined at an angle of 35.1 above the horizontal. The magnitude of the mowers acceleration is 1.37m/s<sup>2</sup>, which lasts for 0.58s, after which the mower moves at a constant velocity. Determine the magnitude of<br />(a) the normal force <br />(b) the frictional force on the mower<br />(c) the maximum velocity of the mower<br />(d) the force applied by the boy needed to maintain the constant velocity.</p>
