A) body will move in forward direction if\[F=5N\]
B) body will move in backward direction with acceleration\[0.5\text{ }m/{{s}^{2}},\]if force\[F=3N\]
C) If\[F=3N,\]then body will be in rest condition
D) both [a] & [c] are correct
Correct Answer: D
Solution :
For moving the body, applied force should be greater or equal to limiting firiction (i.e.\[\mu N\]). The limiting friction is \[{{f}_{2}}=\mu N\] \[=\mu mg\] \[=0.2\times 2\times 9.8=3.82N\] [a] Since applied force\[F=5\text{ }N,\]so, body starts to move irr forward direction. [b] Here, applied force is lesser than limiting friction. So, body does not move. [c] The reason is same as [b]. Hence [d] is correct.
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