A wheel rotates around a stationary axis so that the rotation angle `theta` varies with time as `theta=at^(2)` where `a=0.2rad//s^(2)`. Find the magnitude of net acceleration of the point A at the rim at the moment `t=2.5s` if the linear velocity of the point A at this moment is `v=0.65m//s`.
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WORK, ENERGY AND POWER
PHYSICS GALAXY - ASHISH ARORA|Exercise Practice Exercise|42 Videos
A wheel rotates around a stationary axis so that the rotation angle theta varies with time as theta=2t^(2) radian. Find the total acceleration of the point A at the rim at the moment t=0.5 s If the radius of wheel is 1 m .
A solid body rotates about a stationary axis so that the rotation angle theta varies with time as theta=6t-2t^(3) radian. Find (a) the angular acceleration at the moment when the body stops and (b) the average value of angular velocity and angular acceleration averaged over the time interval between t=0 and the complete stop.
the angular velocity omega of a particle varies with time t as omega = 5t^2 + 25 rad/s . the angular acceleration of the particle at t=1 s is
A solid body rotates with angular velocity vecomega=3thati+2t^(2) hatj rad//s . Find (a) the magnitude of angular velocity and angular acceleration at time t=1 s and (b) the angle between the vectors of the angular velocity and the angular acceleration at that moment.
A point at the periphery of a disc rotating about a fixed axis moves so that its speed varies with time as v = 2 t^2 m//s The tangential acceleration of the point at t= 1s is
Angular displacement ( theta ) of a flywheel varies with time as theta=2t+3t^2 radian. The angular acceleration at t=2s is given by
A wheel of radius 15 cm is rotating about its axis at angluar speed of 20 rad//s . Find the linear speed and total acceleration of a point on the rim.
The acceleration of a particle varies with time t as a=t^(2)+t+2 where t is in seconds. The particle starts with an initial velocity v-3m/s at t=0. find the velocity of the particle at the end of 5s.
A body is rotating around a fixed axis with angular velocity 3 rad/s with constant angular acceleration of 1rad//s^(2) at some time. Find the magnitude of acceleration of a particle 5 m away from the axis after the body has turned by 90^(@) .
Find the radius of a roating wheel if the linear velocity v_1 of a point on the rim is 2.5 times greater than the linear velocity v_2 of a points 5 cm closer to wheel axle
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