Find the amount of work done by a labourer,who carries 'n' number of bricks of mass 'm' kg each to the roof of a house of height 'h'.
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To find the amount of work done by a laborer carrying 'n' number of bricks of mass 'm' kg each to the roof of a house of height 'h', we can use the following formula:
Work = Force × Distance
First, let's find the force required to carry one brick. Since the force exerted on an object is the product of its mass and acceleration due to gravity, the force required to lift one brick is given by:
Force = Mass × Acceleration due to gravity
The acceleration due to gravity is approximately 9.8 m/s^2. Therefore, the force required to lift one brick is:
Force = m × 9.8
Next, we need to determine the distance the laborer carries the bricks, which is equal to the height of the house. Thus, distance = h.
Now, we can find the total work done by multiplying the force required to lift one brick by the total number of bricks carried, and then multiplying it by the distance:
Total Work = Force × Distance = (m × 9.8) × n × h
Therefore, the amount of work done by the laborer carrying 'n' number of bricks of mass 'm' kg each to the roof of a house of height 'h' is (m × 9.8) × n × h.