First slide

Work done by Diff type of forces

Question

A body of mass 5 kg is moved up over 10 m along the line of greatest slope of a smooth inclined plane of inclination of 30° with the horizontal. If g=10m/s², the work done will be in joule is ……….

Moderate

A

500
B

2500
C

250
D

25

Solution

w = F S = Mg l sin $θ$ = 5 $\times 10 \times 10 \times \frac{1}{2}$ = 250 J

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