Question

A 30 kg block rests on a rough horizontal surface. A
force of 200 N is applied on the body. The block
acquires a speed of 4 m/sec, starting from rest, in
2 sec. What is the value of coefficient of friction?
(a) 10/ √3 (b) √3 /10
(c) 0.47 (d) 0.185

Answer 1

Answer:

(c) 0.47 is the answer..........

Answer 2

Answer:

c (0.47)

Explanation:

normal reaction is equal to mass ×gravity