An electric motor has an input power of 160 W. In raising a load, 120 W of power is dissipated. How long would it take to vertically lift a 400. N bag of cement through 10.m Give your answer in seconds.

(Show Work)

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)