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1.7.2 Work done

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Question 49

A worker carries 15 building blocks from the ground to a platform. Each block has a mass of 2.4 kg. The platform is 12 m above the ground.

How much work does the worker do against gravity on the blocks in carrying them to the platform?

Take the acceleration of free fall to be g=9.81 m/s2g = 9.81\text{ m/s}^2g=9.81 m/s2.

A

280 J280\text{ J}280 J

B

430 J430\text{ J}430 J

C

4200 J4200\text{ J}4200 J

D

4300 J4300\text{ J}4300 J

Markscheme

1.7.2 Work done Questions

  1. IGCSE
  2. /Physics
  3. /1.7.2 Work done

67 exam-style questions on CIE IGCSE Physics 1.7.2 Work done. Each one has a worked solution and a mark scheme showing where the marks go.

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