When the temperature of the air is 25°c, the velocity of a sound wave traveling through the air is approximately
a. 347 m/s.
b. 332 m/s.
c. 357 m/s.
d. 320 m/s.

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.