A turntable of radius 60 cm undergoes constant acceleration from rest to 3.0 rev/s in 2.5 seconds. (a) Through what angle does the turntable rotate between t = 0 and t = 1.8 s? b) For a dust particle sitting on the edge of the turntable, what is its centripetal acceleration at t = 2.0 s?

An athlete swings a 6.30-kg ball horizontally on the end of a rope. The ball moves in a circle of radius 0.690 m at an angular speed of 0.450 rev/s. What is the tangential speed of the ball? What is its centripetal acceleration? If the maximum tension the rope can withstand before breaking is 128 N, what is the maximum tangential speed the ball can have?

A rectangular Plate is rotating with a constant angular speed about an axis that passes perpendcularly sthrough one corner.  The centripetal acceleration measured at a corner A is n times as great times as that measured at corner B. What is the ratio L1/L2 of the lengths of the sidse of the rectangle when n=3.95

When a fan is turned off, its angular speed decreases from 168 rpm to 64.0 rpm in 6.08 s.  A) what is the angukar acceleration of the fan? B) How fast the edges of the blades are moving (in m/s) at time 6.08 s, if they are 86.0 cm long?

A car drives around a curve with radius 400 m at a speed of 32 m/s. The road is banked at 7.0 degree. The mass of the car is 1500 kg. What is the magnitude of the centripetal force in order to make this turn?   I am given an answer of 3800N, but not quite sure how to get there. Thanks!

A centrifuge in a biochemistry laboratory rotates at an angular speed of 3,650 rev/min, clockwise (when viewed from above). When switched off, it rotates through 48.0 revolutions before coming to rest. Assuming it is constant, what is the magnitude of angular acceleration (in rad/s²)? rad/s² What is the direction of the angular acceleration (again, when viewed from above)? clockwise оо counterclockwise The magnitude is zero.

How fast (in rpm) must a centrifuge rotate if a particle 6.7 cm from the axis of rotation is to experience an acceleration of 200000 g’s? Express your answer using two significant figures

1. A stopwatch starts while race car travels at 13 m/s from the pit area and accelerates at a uniform rate to a speed of 37 m/s in 5 s moving on a circular track of radius 548 m. Assuming constant tangential acceleration, find (a) the tangential acceleration, and (b) the radial acceleration,at the instant when the speed is v=7 Once you have both of those…. find the magnitude of a at any moment a= 2. A stopwatch starts while race car travels at 5 m/s from the pit area and accelerates at a uniform rate to a speed of 23 m/s in 16 s moving on a circular track of radius 466 m. Assuming constant tangential acceleration, find (a) the tangential acceleration, and (b) the radial acceleration,at the instant when the speed is v=15 Once you have both of those …. find the magnitude of a at any moment a= 3. A stopwatch starts while race car travels at 7.0 m/s from the pit area and accelerates at a uniform rate to a speed of 22 m/s in 3 s moving on a circular track of radius 491 m. Assuming constant…

a marshmallow is placed 3.9cm away from the center of a rotating microwave plate for 0.6 minutes. if the plate rotates at 6.5 rpm, what is the tangential acceleration in m/s/s?

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