Question 3 A trolley, while going down an inclined plane, has an acceleration of 2cms−2. What will be its velocity 3 seconds after the start?
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Solution
Given, initial velocity of the trolley, u=0, acceleration, a=2cms−2 and time, t=3s We know that final velocity, v=u+at=0+(2×3)=6cms−1 Therefore, the velocity of trolley after 3 seconds =6cms−1