Answer to Question #41011 in Mechanics | Relativity for alzahra ali

Question

An 8.0 kg block is released from rest, v1 = 0 m/s,
on a rough incline. The block moves a distance of
1.6 m down the incline, the work done by the weight
is closest to:

file:///Users/123456/Desktop/Document1.htm

a) +80 J
b) +100 J
c) +120 J
d) -100 J
e) -80 J