Question

A particle is moving in a straight line.Its displacement at any instant t is given by x= 10 t + 15t3, where x isin meter and t in second. Find (i) average velocityin the time interval t= 0 to t= 2 s and(ii) instantaneous velocityat t= 2 s. (iii) average acceleration in the time interval t= 0 to t= 2 s (iv)instantaneous acceleration at t= 2 s.

Answer 1

The answer is 90m/s^2..........

Answer 2

this is your answer

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