Motion in A Straight Line

Question: The motion of a particle is described by the equation \[x = a + b{t^2}\] where \[a = 15\] cm and \[b = 3\] cm/s2. Its instantaneous velocity at time 3 sec will be



1) 36 cm/sec
2) 18 cm/sec
3) 16 cm/sec
4) 32 cm/sec
Solution: Explanation: Explanation
non-uniform-motion

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