Question

At the same instant that a 9.2 kg ball is dropped from 219 m above the Earth's surface, a second ball, with a mass of 16.2 kg, is thrown straight upward from the Earth's surface with initial velocity of 13.4. They move along nearby vertical paths and pass without colliding. Calculate the velocity of the center of mass of the two ball system after 11.0 s. A negative answer is okay, can you interpret that physically? NOTE: Be sure to include units in your answer. UCM At the same instant that a 9.5 kg ball is dropped from 43 m above the Earth's surface, a second ball, with a mass of 15.1 kg, is thrown straight upward from the Earth's surface with initial velocity of 11.7 They move along nearby vertical paths and pass without colliding. Calculate the acceleration of the center of mass of the two-ball system after 2.96 s. A negative answer is okay, can you interpret that physically? NOTE: Be sure to include units in your answer. асм

Answer 1

2 A Hz Į Gt ² All z x 9.8x11 An= 593m. > 219 m. Both Bally and have reached ground. Vem - 2 2 All- [x9.842-96 All 2 42.9. M. < 43m. b Rostertalt szare Ball I is in the air but Ball q has creathed back to groenda acm solor 4.9 m/s2