Question

A particle moves along a straight line. The position of the particle at time t is given by x = 40 + 12t – t 3 (where x is in metre and t is in second). Calculate (a) Velocity at t = 2 s, (b) Acceleration at t = 2 s, (c) Average velocity in first 2 s.

Answer 1

Answer:

A particle moves along a straight line OX. At a time t(in seconds) the distance x(in meters)of the particle from 0 is given by:-x=40+12t−t

3

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