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Grade 99 grade science

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

Profile image of Ankit kumar
7 Years agoGrade 9
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1 Answer

Profile image of Arun
7 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