Laws Of Motion Question 339
Question: If u be the coefficient of friction between the block and the cart, horizontal acceleration of the cart that is required to prevent block B from faffing is:
Options:
A) $ \mu /g $
B) $ g/\mu $
C) $ g $
D) $ ( {{\mu }^{2}}+1 )g $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ mg=\mu N=\mu ma\therefore a=\frac{g}{\mu }. $
