Momentum and CollisionHard
Question
A wheel has angular acceleration of 3.0 rad/s. In a time of 2 s it has rotated through an angle (in radian)of
Options
A.6
B.10
C.12
D.4
Solution
Given : initial angular speed,
ωo = 2rad/s, angular acceleration,
α = 3 rad / s2, time, t = 2s
Form the equation of the angular displacement,
θ = ωot +
αt2 = 2 × 2 + × 3 × (2)2
= 4 + 6 = 10 radians
ωo = 2rad/s, angular acceleration,
α = 3 rad / s2, time, t = 2s
Form the equation of the angular displacement,
θ = ωot +
αt2 = 2 × 2 + × 3 × (2)2= 4 + 6 = 10 radians
Create a free account to view solution
View Solution FreeMore Momentum and Collision Questions
A body A of mass M while falling vertically downwards under gravity breaks into two parts; a body B of mass 1/3 M and a ...An isolated particle of mass m is moving in horizontal plane (x – y), along the x-axis, at a certain height above the gr...A body of mass 2kg is projected upward from the surface of the ground at t = 0 with a velocity of 20m/s. One second late...The magnitude of acceleration of centre of mass of the system is...A vertical U-tube contains a liquid. The total length of the liquid column inside the tube is l. When the liquid is in e...