Using INTEGRAL CALCULUS, find out how much work is done in lifting a 1.2 kg book off the floor to put it on a desk that is 0.7 m high? Use the fact that the acceleration due to gravity is $g = 9.8 m/s^2$

Please show the formula transformation... $\textbf{MOST NEEDED}$

Question

Using INTEGRAL CALCULUS, find out how much work is done in lifting a 1.2 kg book off the floor to put it on a desk that is 0.7 m high? Use the fact that the acceleration due to gravity is $g = 9.8 m/s^2$

Please show the formula transformation... $\textbf{MOST NEEDED}$

lgbasallote · Answer

@bmp ?

anonymous · Answer

I will give it a thought. No mention of the upwards movement being accelerated?

lgbasallote · Answer

uhmm no..just acceleration due to gravity

anonymous · Answer

its simply gonna be ingegral from 0 to 0.7 0f 11.76

anonymous · Answer

I would do $$ \int_{0}^{0.7} mgdx $$considering the upwards force being equal to the weight.

lgbasallote · Answer

uh-huh..makes sense

anonymous · Answer

you have to understand that the work here varies as we move from x=a to x=b, and the change in work is going to be mass * gravity

lgbasallote · Answer

i get the limits...it's the value of F(x) that always gets me

anonymous · Answer

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