Work Done!

You lift a 450 N bag of rice 1.2 metres and carry it a distance of 10 metres to the kitchen. How much work is done?

Note by Ashley Shamidha
2 years, 1 month ago

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W=F.S Cos(theta)

We have to know the 'THETA' Which is point of application of force

In this case, Only Force and displacement , there is no use of length of sack

Simply if we take W=F.S and Cos180°= (-1) So,W=450x 10x (-1) =(-4500)

- 2 years, 1 month ago

Hiii mi Narayan...how is it

- 2 years, 1 month ago

Zero

- 2 years, 1 month ago

450*1.2

- 2 years, 1 month ago

Work done will be zero as the angle between force (in verticle direction against gravity) and displacement (if kitchen is in same horizontal plane) is 90.

- 2 years, 1 month ago

Where is the kitchen located relative to where the rice was?

Staff - 2 years, 1 month ago

John weighing 40 kg claimbs up a staircase of 20 steps,each of 16 cm height, in 20 seconds. Find the power generated by him.

- 2 years, 1 month ago