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How much work would it take to push a # 8 kg # weight up a # 3 m # plane that is at an incline of # pi / 4 #?

Answer 1

Nora Arzate

#E_p=W=166,48J#

#E_p:"Potential energy of object"#
#W:"Work"#
#m:"Mass of object"#
#g:9,81 m/s^2#

#E_p=W=m*g*h#

#E_p=W=8*9,81*3*sin pi/4#

#E_p=W=166,48J#

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Answer 2

William Audy

The work done would be ( W = mgh \cos(\theta) ), where ( m = 8 , \text{kg} ), ( g = 9.8 , \text{m/s}^2 ), ( h = 3 , \text{m} ), and ( \theta = \frac{\pi}{4} ). Calculate the result.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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