Starting at ( ω a ) 0 = 3 rad/s, when θ = 0, s = 0, pulley a is given an angular acceleration α = (0.6θ ) rad/s2, where θ is in radians. determine the speed(m/s) of block b when it has risen s = 0.5 m. the pulley has an inner hub d which is fixed to c and turns with it.

The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.