How much work would it take to push a 4 kg weight up a 5 m plane that is at an incline of pi / 4 ?

1 Answer
Giordano Biondo
Jan 1, 2016

It takes 138.7J

Explanation:

First of all we have to find the value of h, the variation in altitude.
We use trigonometry: h=5m*sin45°=3.5m
To find work we use the equation W=mgh=4kg*9.81m/s^2*3.5m=138.7J

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