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1.7 Energy, work and power

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Question 440

A vehicle has 450 kJ of kinetic energy. The vehicle brakes and stops in a distance of 60 m.

What is the average braking force acting on the vehicle?

A

0.13 N0.13\text{ N}0.13 N

B

7.5 N7.5\text{ N}7.5 N

C

7500 N7500\text{ N}7500 N

D

27 000 N27\,000\text{ N}27000 N

Markscheme

1.7 Energy, work and power Questions

  1. IGCSE
  2. /Physics
  3. /1.7 Energy, work and power

533 exam-style questions on CIE IGCSE Physics 1.7 Energy, work and power, covering 1.7.1a Energy stores and energy transfers, 1.7.1b Conservation of energy, 1.7.1c Kinetic and gravitational potential energy, 1.7.2 Work done, 1.7.3 Energy resources, 1.7.3a Energy resources and electricity generation, 1.7.3b Nuclear fusion as an energy source, 1.7.3c Efficiency of energy transfer, and 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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