F
Fresh Balla
Guest
first one is:
Two boxes are connected over a pulley and held at rest. Box A has a mass of 10.00 kg and box B has a mass of 6.000 kg. If the bottom of box A is originally 0.7500 cm above the floor, with what speed will it contact the floor when the system is released? Use conservation of energy and assume that friction is negligible.
Second question is:
How far above the surface of Earth does an object need be so that it weighs half as much as it would normally?
Please i really need help, I've already spent like an hour on these, but can't figure them out ! also it would be great if the answer was shown in steps, so i could understand how to do it next time.
Two boxes are connected over a pulley and held at rest. Box A has a mass of 10.00 kg and box B has a mass of 6.000 kg. If the bottom of box A is originally 0.7500 cm above the floor, with what speed will it contact the floor when the system is released? Use conservation of energy and assume that friction is negligible.
Second question is:
How far above the surface of Earth does an object need be so that it weighs half as much as it would normally?
Please i really need help, I've already spent like an hour on these, but can't figure them out ! also it would be great if the answer was shown in steps, so i could understand how to do it next time.