A boy lifts a 1 kg block by 1 m. The work done by the boy is: (g = 9.8 metre per second squared)
Question
A boy lifts a 1 kg block by 1 m. The work done by the boy is: (g = 9.8 metre per second squared)
Solution
The work done by the boy can be calculated using the formula for work, which is:
Work = Force x Distance
In this case, the force is the weight of the block, which can be calculated using the formula:
Weight = Mass x Gravity
Given that the mass of the block is 1 kg and the acceleration due to gravity is 9.8 m/s², the weight of the block is:
Weight = 1 kg x 9.8 m/s² = 9.8 N
Therefore, the work done by the boy in lifting the block by 1 m is:
Work = 9.8 N x 1 m = 9.8 Joules
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