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JEE Main Physics question

PhysicsMotion in a Straight LineJEE Main

A particle moving in a straight line covers half the distance with speed 3 m/s. The other half of the distance is covered in two equal time intervals with speeds 4.5 m/s and 7.5 m/s respectively. The average speed of the particle during this motion is

Answer: (A)

Solution

Let total distance . Time for first half . Let each equal time interval of the second half be : distance covered

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Question ID VK-151893