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QJEEM19Phdc0d: JEE Main 2019 Physics - Class 11 JEEM19Phdc0d Solution: A particle is moving along a circular path with a constant…

A particle is moving along a circular path with a constant speed of 10 ms–1. What is the magnitude of the change in velocity of the particle, when it moves through an angle of 60o around the centre of the circle?

Multiple Choice Options

  • A zero
  • B 10 m/s
  • C 102m/s
  • D 103m/s

Step-by-Step Verified Solution

JEE Main 2019 (Online) 11th January Morning Slot Physics - Circular Motion Question 59 English Explanation
|Δv→|=v12+v22+2v1v2cos⁡(π−θ)

=2vsin⁡θ2        since [|v―1|=|v―2|]

=(2×10)×sin⁡(30o)

= 10 m/s

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