JIPMER2019PhysicsMotion in Two Dimensions
If object starts from rest and covers angle of 60 rad in 10 sec in circular motion magnitude of angular acceleration will be
Options
- A1.2 rad / sec ^2
- B1.5 rad / sec ^2
- C2 rad / sec ^2
- D2.5 rad / sec ^2
Correct answer
A. 1.2 rad / sec ^2
Step-by-step solution
Given, initial angular velocity of object w₀=0 Angular displacement =60 rad and t =10 sec From equation of rotational motion, aligned & = w ₀ t + 1 2 t ^2 60 & =0 t + 1 2 10^2 & = 60 50 =1.2 rad / s ^2 aligned