11. A wheel is rotating with an angular speed of (t + 1) (rad/s). Calculate the centripetal acceleration of a point 1.0 m from the axis of rotation at time t = 1.0 s O A. 1.0 m/s^2 OB. 4.0 m/s^2 O C. 3.0 m/s^2 OD. 2.0 m/s^2

Human centrifuges are used to train military pilots and astronauts in preparation for high-g maneuvers. A trained, fit person wearing a g-suit can withstand accelerations up to about 9g (88.2 m/s2) without losing consciousness, (a) If a human centrifuge has a radius of 4.50 m, what angular speed results in a centripetal acceleration of 9g? (b) What linear speed would a person in the centrifuge have at this acceleration?

Olympic ice skaters are able to spin at about 5 rev/s. (a) What is their angular velocity in radians per second? (b) What is the centripetal acceleration of the skater's nose if it is 0.120 m from the axis of rotation? (c) An exceptional skater named Dick Button was able to spin much faster in the 1950s than anyone since—at about 9 rev/s. What was the centripetal acceleration of the tip of his nose, assuming it is at 0.120 m radius? (d) Comment on the magnitudes of the accelerations found. It is reputed that Button ruptured small blood vessels during his spins.

1. A 30kg child sits on the edge of a merry-go-round with a radius 5.0m. The merry-go-run rotates as shown with a constant speed such that it takes the child 6.0 seconds to make a complete revolution. a. What is the child'sangular speed (in rad/s)? b. What is the magnitude and direction of the child's acceleration (in m/s2) at the point in time shown?

A disk 8.00 cm in radius rotates at a constant rate of 126 rad/s about its central axis. Determine the radial acceleration of a point on the rim in m/s?. Lütfen birini seçin: O A. 1540 O B. 1270 O C. 1320 O D. 1480 O E. 1680

23. A particle, moving in a circle of radius 10 cm with a uniform speed, completes a revolution in 4 seconds. The magnitude of the centripetal acceleration it experiences is________cm/s^2.A. 2.5 π2B. 5 π2C. 3 π2D. 6 π2

A rotating disk is initially spinning at w 7.4 rev/s, slows down and stops in 11.6 s. What is the magnitude of the disk's average angular acceleration? (in rev/s^2) 1.28 .a O 42.92 .b O 0.64.c O 0.64-.d O

A particle undergoes uniform motion. the speed of the particle is 10.0m/s. and the radius of its circular path 3.20m  a. determine the time it takes the particle to go around its circular path once. b. determine the angular speed of the particle c. determine the centripetal acceleration of the particular

A circular disk of radius 0.010 m rotates at a rate of 5.0 rev/s. What is the acceleration of a point on the edge of the disk? a. 0.31 m/s2 b. 1.6 m/s2 c. 9.9 m/s2 d. 2500 m/s2 e. zero m/s2

# 16. The frequency of a merry go round is 5 times per minute. What is the tangential velocity of the merry go round if it has a radius of 20.0 meters? a. 3.00 m/s b. .050 m/s c. 10.5 m/s d. 6.28 m/s #17. The frequency of a merry go round is 5 times per minute, and it has a radius of 20.0 meters. What is the angular velocity of the merry go round in degrees per second? a. 18.0 degrees/s b. .050 degrees/s c. 30.0 degrees/s d. 60.0 degrees/s