Test Index

BECE Science 2021 Paper

Question : 27

Total: 40

Solution:

Concept:

Work done is the product of the applied force and the distance moved in the direction of the force.

Explanation:

The force exerted by the machine equals the weight of the load, which is

100 \text{ N}

The vertical distance moved by the load is

2 \text{ m}

So, work done is given by:

\text{Work} = \text{Force} \times \text{Distance}

\text{Work} = 100 \text{ N} \times 2 \text{ m} = 200 \text{ J}

The time of

10 \text{ s}

is not needed to calculate work.

Answer:

200 \text{ J}

Go to Question:

Prev Question

Next Question