4:12 C all 79% Question 1 Not yet answered Points out of 1.00 P Flag question A disc of radius of 15 cm, initially rotating at 30 rev/min, slows down with constant angular acceleration and stops in 20 s. Take t = 3. What is the radial acceleration of a point of the edge of the disc at t = 0? Select one: a. 2.35 m/s? b. 1.35 m/s? c. 0.60 m/s? d. 2.15 m/s? e. 0.75 m/s? f. 2.50 m/s? g. 0.45 m/s? h. 1.50 m/s? Next page Time left 0:17:21

4. A circular saw blade rotating at 3600 rpm is braked to a stop in 6 sec. What is the angular acceleration? How many revolutions did the blade make before coming to stop?

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1. The vehicle moves along a circular track at a consistent speed of 10 m/s. Determine the radial and transverse components of the car's velocity and acceleration at the moment when θ=3π/4 radians. A. How do the radial and transverse components of acceleration relate to the car's motion on the circular track? B. What are the radial and transverse components of velocity, and how are they related to the car's motion on the circular track?

An ultracentrifuge accelerates from rest to 96200 rpm in 1.95 min. Randomized Variables f = 96200 rpmt = 1.95 minl = 9.2 cm 1)What is its angular acceleration in rad/s2?  α = 2)What is the tangential acceleration of a point 9.2 cm from the axis of rotation in m/s2? at =  3)What is the centripetal acceleration in multiples of g of this point at full speed?  a/g =

A toy racecar races along a circular race track that has a radius of 19 meters. The racecar starts at the 3-o'clock position of the track and travels in the CCW direction. Suppose the car has swept out 2.25 radians since it started moving. a. The racecar is how many radius lengths to the right of the center of the race track? radius lengths Preview b. The racecar is how many meters to the right of the center of the race track? meters Preview c. The racecar is how many radias lengths above the center of the race track? radius lengths Preview d. The racecar is how many meters above the center of the race track? meterss Preview

A 2.5 kg object is in uniform circular motion with a period of 5 s. If the radius of the path is 2 m, what is the centripetal force on the object? Answer a.7.9 N b.5. 7 N c.9.4 N d.6.8 N e.8.6 N

When an object is moving with uniform circular motion, the object"s tangential speed is Select one: a. directed towards the center of motion b. circular c. constant d. perpendicular to the plane of motion

Question 14