A 1.2-m-diameter barrel rolls down a slope with an initial velocity of 0.8 m/s. Ten seconds later it has a velocity of 3.4 m/s. Determine (a) the angular acceleration of the barrel and (b) the angular...

A 1.2-m-diameter barrel rolls down a slope with an initial velocity of 0.8 m/s. Ten seconds later it has a velocity of 3.4 m/s. Determine (a) the angular acceleration of the barrel and (b) the angular velocity at t 10 seconds.

A car accelerates uniformly from 20 mph to 80 mph in 6 seconds while traveling on a curve with a radius of 500 ft. Determine its total acceleration at t 4 seconds.