Laws Of Motion Question 223
Question: A body of mass 2 kg is moving with a velocity 8 m/s on a smooth surface. If it is to be brought to rest in 4 seconds, then the force to be applied is[Pb. PMT 2000]
Options:
A) 8 N
B) 4 N
C) 2 N
D) 1 N
Show Answer
Answer:
Correct Answer: B
Solution:
$ F=ma=\frac{m(u-v)}{t}=\frac{2\times (8-0)}{4}=4N $
