JEE Main Physics question
A student is standing at a distance of 50 metres from the bus. As soon as the bus begins its motion with an acceleration of 1 ms, the student starts running towards the bus with a uniform velocity . Assuming the motion to be along a straight road, the minimum value of , so that the student is able to catch the bus is [K CET 2003]
Answer: (D)
Solution
Critical condition: , discriminant ms.