A) 15s
B) 14s
C) 12.5s
D) 18s
Correct Answer: C
Solution :
Here, \[a=\frac{F}{m}=\frac{80}{50}=1.6\,m/{{s}^{2}}\] \[u=20\,m/s\]and\[v=0\] From \[v=u+at\] \[0=20-1.6\times t\] \[t=\frac{20}{1.6}=12.5s\]You need to login to perform this action.
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