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JEE Main Physics question

PhysicsMotion in a Straight LineJEE Main

A ball is dropped from a high rise platform at starting from rest. After 6 seconds another ball is thrown downwards from the same platform with a speed . The two balls meet at s. What is the value of ? (taking g = 10 m/s)

Answer: (B)

Solution

Ball 1 (fallen 18 s): m. Ball 2 (fallen s):

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Question ID VK-152422