How would the acceleration of a chain of three shopping carts compare with the acceleration of a single cart if the same force acted on both?
a. 1/3 as much the single
b. 1/2 as much the single
c. 3 times as much the single
d. 2 times as much the single

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.