Question

The position vector is given by r = 5t^2î + 2t^3j+ 2k. Find its velocity and acceleration at t=2s​

Answer 1

Step-by-step explanation:

velocity =10t i cap+6t^2 j cap

acceleration=10 i cap+12t j cap

magnitude of velocity=√976=31.2m/s

magnitude of acceleration=26m/s^2...

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