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2.8 Forces and Newton's laws

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Question 9

In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2

A crate of mass 40 kg is raised vertically by a light cable.

Starting from rest, the crate accelerates uniformly upwards at 0.6 m s−2^{-2}−2 for 5 seconds, and then continues to rise with constant velocity.

a.

Find the tension in the cable during the first 5 seconds.

[3]
b.

Find the tension in the cable while the crate is moving with constant velocity.

[2]
c.

Find the distance risen by the crate in the first 5 seconds.

[1]
Markscheme

2.8 Forces and Newton's laws Questions

  1. A Level
  2. /Maths
  3. /2.8 Forces and Newton's laws

35 exam-style questions on WJEC A Level Maths 2.8 Forces and Newton's laws, covering 2.8.1 Forces and Newton's laws, 2.8.2 Forces and Newton's laws, 2.8.3 Forces and Newton's laws, 2.8.4 Forces and Newton's laws, 2.8.5 Forces and Newton's laws, and 2.8.6 Forces and Newton's laws. Each one has a worked solution and a mark scheme showing where the marks go.

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