A1250 kg car is stopped at a traffic light. a 3550 kg truck moving at 8.33 m/s hits the car from behind. if bumpers lock, how fast will the two vehicles move?

Which quantities are scalars? choose all that apply a. distance b. speed c. acceleration d. velocity

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.

Describe uniform velocity and variable velocity in short