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A 2kg body is sliding up an inclined plane of inclination 30 o .Find the work done by the force of gravity in moving the body through 1m.Give detailed explaintion

A 2kg body is sliding up an inclined plane of inclination 30o.Find the work done by the force of gravity in moving the body through 1m.Give detailed explaintion
 

Grade:9

1 Answers

Arun
25757 Points
4 years ago
Work done = f *cos theta* s
Force = ma
. = 2 * 10 or 9.8
= 20 or 19.6

Take 20 if g = 10 or 19.6 if g = 9.8
I had taken g = 10

Wd = 10 * root 3 / 2 * 1
= 5 * root 3 
= 8.65 joule ( root 3 = 1.73)
 
Hope ot helps

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