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
View Solution FreeMore Kinematics Questions
The acceleration-time graph for a body is shown in the graph. Which of the following graphs would probably represent vel...L, C and R represent he physical quantities inductance, capacitance and resistance respectively. The combinations which ...A rocket with a lift-off mass 3.5 × 104 kg is blasted upwards with an initial acceleration of 10 m/s2. Then the ini...A particle of mass m moves along a curve y = x2. When particle has x-co-ordinate as 1/2 and x - component of velocity as...The velocity of a particle moving along x - axis is given as v = x2 - 5x + 4 (in m/s) where x denotes the x - coordinate...