A) 81 m
B) 91m
C) 101m
D) 111m
Correct Answer: B
Solution :
Given, \[x=37+27t-{{t}^{3}}\] \[v=\frac{dx}{dt}=27-3{{t}^{2}}\] According to problem, \[v=0\Rightarrow 27-3{{t}^{2}}=0\] Here, t = 3 s \[x=37+27\times 3-{{(3)}^{2}}\] \[=91\,m\]You need to login to perform this action.
You will be redirected in
3 sec