How much work would it take to push a # 2 kg # weight up a # 19 m # plane that is at an incline of # pi / 6 #?

1 Answer
Mar 4, 2016

Answer:

180 j

Explanation:

There are multiple ways to do this

First Way;

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Second way

we will use the formula method

The minimum force needed with neutralize the force of gravity pushing the block down the incline.

#=> F = mg cos theta#

We know

#W = F * s#

# W = mg cos theta * s#

# W = 2 * 10 * cos(pi/6 )* 90 = 180 J#