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3 Mechanics

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Question 82

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

A powered vehicle A A\,A of mass 1200 kg tows a trailer B B\,B of mass 800 kg up a straight road inclined at 5° 5°\,5° to the horizontal. The tow-bar is light, rigid and parallel to the road.

The driving force on A A\,A is 9000 N. Constant resistance forces of 500 N and 300 N act on A A\,A and B B\,B respectively, down the road.

a.

Find the acceleration of the vehicle and trailer.

[4]
b.

Find the tension in the tow-bar.

[3]
Markscheme

3 Mechanics Questions

  1. A Level
  2. /Maths
  3. /3 Mechanics

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