The fire truck is moving forward at a speed of 35 mi/hr and is decelerating at the rate...

The fire truck is moving forward at a speed of 35 mi/hr and is decelerating at the rate of 10ft/sec². Simultaneously, the ladder is being raised and extended. At the instant considered the angle is 30^o and is increasing at the constant rate of 10 deg/sec. Also at this instant the extension b of the ladder is 5 ft, with For this instant determine the acceleration of the end A of the ladder (a) with respect to the truck and (b) with respect to the ground.