Laws Of Motion Question 367
Question: A horizontal force of 10 N is necessary to just hold a block stationary against a wall. The coefficient of friction between the block and the wall is 0.2.the weight of the block is [AIEEE 2003]
Options:
A) 2 N
B) 20 N
C) 50 N
D) 100 N
Show Answer
Answer:
Correct Answer: A
Solution:
$ F=\frac{W}{\mu } $
$ \therefore $ $ W=\mu F=0.2\times 10=2N $
