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?

#Mechanics

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Comments

Zero

Mohit Gupta - 5 years, 3 months ago

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)

Adarsh Mahor - 5 years, 3 months ago

Hiii mi Narayan...how is it

Narayan Palsikar - 5 years, 3 months ago

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

Calvin Lin Staff - 5 years, 3 months 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.

Ashley Shamidha - 5 years, 3 months 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.

Aman Dubey - 5 years, 3 months ago

450*1.2

Khairul Azman - 5 years, 3 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$