KinematicsHard
Question
A particle is kept fixed on a turntable rotating uniformly. As seen from the ground, the particle goes in a circle , its speed is 20 cm/ and acceleration is 20 cm/s2. The particle is now shifted to a new position to make the radius half of the original value. the values of the speed and will be
Options
A.10 cm/s, 10cm/s2
B.10 cm/s, 80 cm/s2
C.40 cm/s, 10 cm/s2
D.40 cm/s, 40 cm/s2
Solution
ω and α remain same but v and aT is proportional to r thus at hlf the radius,
v′ =
& aT′ = 
Create a free account to view solution
View Solution FreeMore Kinematics Questions
A point move in a straight line under the retardation av2. If the initial velocity is u, distance covered in ‘t’ seconds...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...In the diagram shown, the displacement of particle is given as a function of time The particle A is moving under constan...A ball is projected from a certain point on the surface of a planet on the surface of a planet at a certain with the hor...A ball is vertically upwards. Which of the following plots represents the speed-time graph of the ball during its flight...