Question

4. Calculate the velocity and the displacement between t=1s to t=4s. The displacement of four different bodies A,B,C and D are given as SA 3t2 - 2t + 12. SB = 60 + 12 Sc 4t3 + t2 – 2. So = 14 - Where t=time (in seconds) and all the displacements are in meter. (i) Which one is at rest? Which one moves with uniform velocity ? (ii) (iii) (iv) Which one moves with constant acceleration ? Which one moves with accelerated motion ? (v) Velocity of each one when t = 2s. Acceleration of each one at t = 4s. (vi)​

Answer 1

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