Answers

2016-03-20T12:30:43+05:30
Work done = Force x displacement 
Here,
Force = 150 N
Displacement = 5 m

Work done = 150 x 5 = 750 joules 

Here , if the bus moves in the direction of force then the work is positive but if the bus does not move or move in the opposite direction of force then the work done is negative . 
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2016-03-20T13:04:42+05:30
Work done = force × displacement
= 5 ×150 =750j
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