For a given cylindrical motor , the acting force F = 50 N . The moment of inertia j = 1/8 rad/sec 2 .The angular acceleration will be :

Select one:
a. 100 rad / s2
b. 10 rad / s 2
c. 50 rad /s 2
d. 150 rad / s 2

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

Asher cycles 12 miles in 16 hours. what is his speed?

What is similar between metals and suspensions