Which object listed below has the greatest momentum? A 0.05 kg object rolling at 0.2 m/s.
O A 0.15 kg object rolling at 1 m/s
O A0.15 kg object rolling at 2 m/s.
O A 0.4 kg object rolling at 2 m/s.

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.

Which system of units is used by only a small number of countries in the world, including the u.s.