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- In the figure, three 0.10 kg particles have been glued to a rod of length L = 11 cm and negligible mass and can rotate around a perpendicular axis through point O at one end. How much work is required to change the rotational rate (a) from 0 to 20.0 rad/s, (b) from 20.0 rad/s to 40.0 rad/s, and (c) from 40.0 rad/s to 60.0 rad/s? (d) What is the slope of a plot of the assembly's kinetic energy (in joules) versus the square of its rotation rate (in radians-squared per second-squared)? Axis -P--P-- P- (a) Number i Units (b) Number i Units (c) Number i Units (d) Number i UnitsLx Gi A 325-kg merry-go-round with a radius of 1.50 m is spinning counterclockwise, as viewed from above, at 4.80 rad/s. A 35.0-kg child is hanging on tightly 1.25 m from the rotation axis. Her father applies friction to the outer rim to slow the merry-go-round to a stop in 5 s. Model the merry-go-round as a solid disk, and define counterclockwise as the positive direction of rotation. How much torque t must the child's father apply? 432 T = N-m IncorrectA car initially traveling at 24.2 m/s undergoes a constant negative acceleration of magnitude 1.80 m/s2 after its brakes are applied (a) How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the tire have radii of 0.305 m? rev (b) What is the angular speed of the wheels when the car has traveled half the total distance? rad/s Need Help? Read It
- Problem 7: Consider the 10.5 kg motorcycle wheel shown in the figure. Assume it to be approximately a ring with an inner radius of 0.28 m and an outer radius of 0.33 m. The motorcycle is on its center stand, so that the wheel can spin freely.A mass m rotates at constant speed v at a radius of R from the rotational eaxis. A force F provides centripetal force Fc . If you double mass, radius and v, the force needed to keep the mass in circular motion would (a) stay the same (b) double (c) halve (d) quadrupleI am unsure how to appraoch this problem. how do I do it?
- A bowler throws a bowling ball of radius R = 11 cm along a lane. The ball (the figure) slides on the lane with initial speed vcom.O friction between the ball and the lane is 0.29. The kinetic frictional force 7k acting on the ball causes a linear acceleration of the ball while producing a torque that causes an angular acceleration of = 8.4 m/s and initial angular speed wo 0. The coefficient of kinetic the ball. When speed vcom has decreased enough and angular speed p has increased enough, the ball stops sliding and then rolls smoothly. During the sliding, what are the ball's (a) linear acceleration and (b) angular acceleration? (c) How long does the ball slide? (d) How far does the ball slide? (e) What is the linear speed of the ball when smooth rolling begins? Note that the clockwise direction is taken as negative. Vcotm (a) Number Units (b) Number Units (c) Number Units (d) Number Units (e) Number UnitsA bowling ball of mass M and radius R rolls without slipping down a ramp with angle b; a) In terms of the variables given (and g) what is its linear acceleration? b) In terms of the variables given, what is the force of friction? c) In terms of m, g, R, b, and L, how fast is it rotating when it has rolled a distance L? acm-x Raz M Вhelp asap
- h A solid sphere rolls without slipping down an incline. At the top it is at rest. What is the linear speed at the bottom? Parameters: ] mass = m = 4.3 kg; angle of the incline height of the ramp = h = 1.10 m; horizontal length of the ramp = L = 3.02 m. (in m/s) = 20 degrees; A: 3.356 OB: 3.926 OC: 4.594 OD: 5.375 OE: 6.288 OF: 7.357 OG: 8.608 OH: 1.007x10¹"The edge of the disk has a constant tangential speed. This means that the tangential speed of the block will increase the farther away it is placed from the center of the disk." I don't understnd why this is truehelp pls asap not in scientific notation pls