A) 40 N
B) 20 N
C) 4N
D) 2 N
Correct Answer: A
Solution :
\[F=ma=m\left( \frac{v-u}{t} \right)=\frac{-mu}{t}\] Substituting the values and neglecting the negative sign (because none of the options is negative) \[F=\frac{0.2\times 20}{0.1}=40\]You need to login to perform this action.
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