differentiation

Question: A stone thrown vertically upwards rises $s$ metre in $t$ seconds, where $s=80t-16{{t}^{2}}$ , then the velocity after 2 seconds is



1) 8 m per sec
2) 16 m per sec
3) 32 m per sec
4) 64 m per sec
Solution: Explanation: No Explanation
Application of Derivatives

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