A puck moves 2.35 m/s in a -22.0 degree direction. a hockey stick pushes it for 0.215s, changing its velocity to 6.42 m/s in a 50.0 degree direction. what was the magnitude of the acceleration

To travel at constant speed, a car engine provides 24kw of useful power. the driving force on the car is 600n. at what speed does it travel?

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

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.