displacement as a function of time is given by s= 2t3 + 7t2 + 3t m. find the average acceleration in 4th sec.also find the instantanious acceleration at 2 sec
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Hey mate!!
Displacement (s) = 2t³+7t²+3t
Velocity (v) = 6t²+14t+0
1) Average acceleration in 4th sec ?
Here, we have to find acc. from 0sec to 4sec.
a(avg) = ∆V/∆t
a = v4 - v0/4
a = 96 + 56/4
a = 152/4
a = 38 m/s²
2) Instantaneous acceleration at 2 sec.
V = 6t²+14t
a = dv/dt
a = 12t
a = 12(2)
a = 24 m/s²
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