Question

A disc of mass 100 gram slides down
from rest on an inclined plane of 30°
and comes to rest after travelling a
distance of 1m along the horizontal
plane. If the coefficient of friction is
0.2 for both inclined and horizontal
planes, then the work done by the
frictional force over the whole journey,
approximately, is (Acceleration due to
gravity = 10 ms- 2)
(1) 0.106 J
(2) 0.05 J
(3) 0.306 J (4) 0.2 J​

Answer 1

Answer:

o. 5J

Explanation:

......pls follow me

Answer 2

Answer:

answer is 0.05 joule by integration of force