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2.8 Forces and Newton's laws

2.8 Forces and Newton's laws

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Question 11

A car of mass 1200 kg tows a trailer of mass 300 kg along a straight horizontal road.

The car and the trailer are connected by a light rigid towbar which is parallel to the road.

The engine of the car produces a constant driving force of 3000 N. The resistance to the motion of the car is 600 N and the resistance to the motion of the trailer is 150 N.

a.

Find the acceleration of the car and trailer.

[3]
b.

Find the tension in the towbar.

[2]
c.

State one consequence of modelling the towbar as light and rigid.

[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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