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Q.

A load of 750 N is raised through a height of 15 m in 5 s. The work done by the machine will be?


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a

11230 J

b

11240 J

c

11250 J

d

11260 J 

answer is A.

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Detailed Solution

The work done by the machine to raise the load of 750 N is raised through a height of 15 m will be 11250 J
Given,
Force, F=750 N;
Displacement, = 15 m Work done is the force applied to an object causing displacement, and it is formulated as
= F.
Where = force applied and
= the displacement or height up to which the load raised
= 750 × 15      11250 J
 
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