Question

A trolley, while going down an inclined plane, has an acceleration of `2 cm//s^(2)` starting from rest. What will be its velocity `3 s` after the start ?

Answer 1

Initial Velocity of trolley, u = 0 cm`s^(-1)`
Acceleration, a = 2cm `s^(-2)`
Time, t = 3s
We know that final velocity, v = u + at = 0 + 2 `xx` 3 cm`s^(-1)`
Therefore, The velocity of train after 3 seconds = 6 cm`s^(-1)`