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  3. . a lorry with mass 3500 kg is parked at the top o

. A lorry with mass 3500 kg is parked at the top of a steep...

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Physics

. A lorry with mass 3500 kg is parked at the top of a steep hillwith a 1–in–8 gradient when its handbrake fails. Assume that thelorry has a constant frictional resistance to motion of 500 N. Thelorry rolls 40 m down the hill before crashing into a lamp post.Use the principle of conservation of energy to calculate thevelocity of the lorry immediately prior to its impact with the lamppost.

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4.2 Ratings (620 Votes)
AnswerGiven dataMass of the lorry Resistive frictional force Since the steep hill is 1in8 gradient    See Answer
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