Question

a block of mass 9 kg slides down an inclient plane of inclination 60 degree.find the work done by the force of gravity as the block slides through 1m.​

Answer 1

Answer:

45 J

Explanation:

force = mass × acceleration due to gravity

F = mg

9×10

90 N

$g = 10{ms}^{ - 2}$

W = F × S cos theta

= 90×1 ×cos 60°

= 90×1/2

= 45 J