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day06second2Dex1&amp;2ww

# day06second2Dex1&amp;2ww - tractor travelling on a road...

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Newton's 2nd Law 2D Problem - Example 1 A gardener pushes down along the handle of a lawn mower of 20. kg mass with a force of 150 N. The handle makes an angle of 60. o with the ground. Calculate the instantaneous acceleration of the mower if the frictional force between its wheels and the ground at that instant is 25 N. Newton's 2nd Law 2D Problem - Example 2 An empty railway flatcar of mass 15 000 kg is being pulled along a smooth, horizontal track by a
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Unformatted text preview: tractor travelling on a road parallel to the track. The rope joining the tractor and the flatcar makes an angle of 25 o with the track. a) If the acceleration of the flatcar is 0.80 m/s 2 , what is the force exerted by the rope on the flatcar? b) Why does the flatcar have no sideways acceleration? A sideways force is exerted by the rope!! A:\sph4u1\chap2\day06second2Dex1&2.doc...
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