CALCULATION INVOLVING WORK DONE : LSUS
Basic Science JSS2 Second Term
CALCULATION INVOLVING WORK DONE
Precious seed BASIC SCIENCE FOR JUNIOR SECONDARY SCHOOLS BOOK 2
TOPIC: CALCULATION INVOLVING WORK DONE
Worked Example 1
How much work is done when a force of 5 kN moves its point of application 600mm in the direction of the force.
W.D = (5×103)×(600 × 10-3)
Worked Example 2
Find the work done in raising 100 kg of water through a vertical distance of 3m.
The force is the weight of the water, so
W.D = (100 × 9.81) × 3
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