A) 8 m per sec
B) 16 m per sec
C) 32 m per sec
D) 64 m per sec
Correct Answer: B
Solution :
\[s=80-16{{t}^{2}}\], \[\frac{ds}{dt}=v=80-32t\] \[{{(v)}_{t=2}}=80-64=16m/sec\].You need to login to perform this action.
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