(a). State the law of conservations of energy. …
(a). State the law of conservations of energy. (1.5 points) (b). A construction worker’s tool falls off from a height of 15 m above ground. What is the speed of the toll when it hits the ground? (1.5 points) (c). In an experiment performed in a space station, a force of 33 N causes an object to have an acceleration equal to 7.0 m/s2. What is the object’s mass? (1.5 points) (d). At what speed must a 150 g object be moving to have a linear momentum of 0.72 kg.m/s? (1.5 points)