Question

A trolley, while going down an inclined plane, has an acceleration of 2 cm/s² . What will be its velocity 3 s after the start?

Answer 1

Here we have, 

Initial velocity, u = 0 m/s 

Acceleration (a) = 2 cm/s² = 0.02 m/s² 

Time (t) = 3 s 

Final velocity, v = ? 

We know that, v = u + at 

Therefore, v = 0 + 0.02 × 3 m/s 

⇒ v = 0.06 m/s 

Therefore the final velocity of trolley will be 0.06 m/s after start.