This post shares a valuable study resource from our library: friction.pdf
Pages: 35 | Subject: Computing
📝 Key Content
1. A and B are two points on a line of greatest slope of a plane inclined at 45 to the horizontal and
AB = 2 m. A particle P of mass 0.4 kg is projected from A towards B with speed 5 m s1. The
coefficient of friction between the plane and P is 0.2.
i. Given that the level of A is above the level of B, calculate the speed of P when it passes
through the point B, and the time taken to travel from A to B.
ii. Given instead that the level of A is below the level of B,
a. show that P does not reach B,
b. calculate the difference in the momentum of P for the two occasions when it is at A.
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