A particle is moving along straight line whose position `x` at time `t` is described by
Channel: Doubtnut
Date: 2020-01-26

A particle is moving along straight line whose position `x` at time `t` is described by `x = t^(3) - t^(2)` where `x` is in meters and `t`is in seconds . Then the average acceleration from `t = 2` sec. to `t = 4` sec, is :