KinematicsHard
Question
A particles starts moving along a circle of radius (20/π) m with constant teangential acceleration. If the velocity of The particle is 50 m/s at the end of the second revolution after motion has began the tangential acceleration in m /s2 is :
Options
A.1.6
B.4
C.15.6
D.13.2
Solution
Give r = 
m
Angular velocity after secound revolution
ω =
+ 2αθ
π2 = 2α(4π) ⇒ α = 
at = αr =
= 15.6
mAngular velocity after secound revolution
ω =
+ 2αθπ2 = 2α(4π) ⇒ α = at = αr =
= 15.6Create a free account to view solution
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