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1.5 Forces

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Question 28
a.

Define acceleration.

[1]
b.

An electric cargo truck has a total mass of 24 000 kg24\,000\text{ kg}24000 kg. The truck accelerates at 1.5 m/s2.

Calculate the time taken for the truck to increase its speed from 12 m/s to 27 m/s.

[2]
c.

Calculate the resultant force required to produce an acceleration of 1.5 m/s2 for this truck.

[2]
d.

Explain why the drive force exerted by the truck's motors must be greater than the value calculated in (ii).

[2]
Markscheme

1.5 Forces Questions

  1. IGCSE
  2. /Physics
  3. /1.5 Forces

245 exam-style questions on CIE IGCSE Physics 1.5 Forces, covering 1.5.1a Forces, resultant force and motion, 1.5.1b Load–extension graphs and the spring constant, 1.5.1c Friction and drag, 1.5.1d Force, mass and acceleration, 1.5.1e Motion in a circular path, 1.5.2a Moment of a force, 1.5.2b Principle of moments and equilibrium, and 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.

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