Question

Find the acceleration of 5kg block in the given figure:
(g = 10 m/s)
5kg
2 kg
F = 30N
(1) 10 m/s
(2) 5 m/s
(3) 2 m/s
(4) 0 m/s​

Answer 1

Answer:

From FBD of 10 kg block,

F=30N,f=0.1×10×10=10N (Assuming kinetic friction coefficient =0.1)

As F>f , so the 10 kg block will move with acceleration a.

Thus, 10a=F−f=30−10=20⇒a=2m/s