A trolley, while going down an inclined plane, has an acceleration of 2 cm s-2. What will be its velocity 3 s after the start?
Given,
Initial velocity, u = 0
Final velocity, v =?
Acceleration, a = 2 cm/s2
And,
Time, t = 3 s
We know that,
v = u + at
= 0 + 2 × 3
= 6 cm/s
Therefore, after 3 seconds the velocity of trolley will be 6 cm/s.