A) -3N
B) -30 N
C) 3N
D) 30 N
Correct Answer: B
Solution :
[b] \[Here\text{ }u=10m{{s}^{-1}},v=-2m{{s}^{-1}},\text{ }t=4s,\text{ }a=?\] Using \[a=\frac{v-u}{t}=\frac{-2-10}{4}=-3m/{{s}^{2}}\] \[\therefore \text{Force, }F\text{=}ma=10\times \left( -3 \right)=-30N\]You need to login to perform this action.
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