An object starts from rest and accelerates at a rate of 3.0 m/s/s for 6.0 seconds. the velocity at the end of the 6.0 seconds is

a. 0.50 m/s
b. 1.0 m/s
c. 2.0 m/s
d. 18 m/s

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?