question_answer 28)

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

Answer:

Here, initial velocity, u = 0 Acceleration, a = 2 cm s-2 Time, t = 3 s From, Ist equation of motion, v = u + at = 0 + 2 x 3 = 6 ms-1