Question icon
Grade 11IIT JEE Entrance Exam

Starting from rest, a body slides down a 45° inclined plane in twice the time it takes to slide down the same distance in the absence of friction. The coefficient of friction between the body and the inclined plane is

(a) 0.80

(b) 0.75

(c) 0.25

(d) 0.33

Profile image of Simran Bhatia
12 Years agoGrade 11
Answers icon

1 Answer

Profile image of Hrishant Goswami
12 Years ago

(b)

In presence of friction a = (g sinq - mg cos q)

 Time taken to slide down the plane