Physics, 19.09.2019 21:00 kymberlyasher
Crall decides that with the kinematic equations of motion and the value of g (9.81 m/s2) she should be able to make quantitative predictions of the ball's motion. she decides to release the ball at a height of 40 m above the ground and that she wants the ball to hit the ground at time 4 s later. she then calculates the speed the elevator needs to be traveling in order for the ball to reach the ground at this time. which is the correct result of crall's calculation? −9.6 m/s 29.6 m/s
Answers: 3
Physics, 22.06.2019 03:00, emilypzamora11
If a spring has a k value of 100 newtons per meter and it is stretched 0.50 meters, what is the restoring force of the spring?
Answers: 2
Physics, 22.06.2019 11:00, Arielledt10
1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?
Answers: 1
Crall decides that with the kinematic equations of motion and the value of g (9.81 m/s2) she should...