A 971 kg drag race car accelerates from rest to 113 km/h in 1.09 s.
What average force is exerted on the car?

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.

Which of these activities increases the amount of carbon in the atmosphere?

What is the speed vfinal of the electron when it is 10.0 cm from charge 1?