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JEE Main Physics question

PhysicsMotion in a Straight LineJEE Main

The distance–time graph of a particle at time makes an angle with the time axis. After 1 s, it makes an angle with the time axis. What is the acceleration of the particle?

Answer: (A)

Solution

Velocity (slope of – graph) at the first instant ; after 1 s,

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Question ID VK-152066