A man is waiting for a bus. What is the work done when he is carrying a box and waits for 5 minutes for the bus?

200 J

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100 J

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6000 J

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0 J

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Solution

The correct option is C $0 J$
$W = F s cos θ$
where $W$ - work done, $F$ - force, $s$ - displacement, $θ$ - angle between force and displacement

As there is no displacement $s = 0$ .

Hence work done is zero. $W = 0$

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How much energy is gained by a box of mass 20 kg when a man

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Akhshay is a student of class 9. He was waiting for a bus on a bus stand. He saw an old man trying to keep his luggage on the roof of the bus and unable to do it. Akhshay picked up his luggage and placed it on the roof of the bus. The old man thanked Akshay for the same. What is the equation for work done against gravity?

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A man is waiting for a bus. What is the work done when he is carrying a box and waits for 5 minutes for the bus?

The correct option is C 0 JW=Fscosθwhere W - work done, F - force, s - displacement, θ - angle between force and displacementAs there is no displacement s=0. Hence work done is zero. W=0

The correct option is C $0 J$
$W = F s cos θ$
where $W$ - work done, $F$ - force, $s$ - displacement, $θ$ - angle between force and displacement

As there is no displacement $s = 0$ .

Hence work done is zero. $W = 0$