Physics
Physics, 24.03.2020 00:13, willjean7027

A roller coaster starts from rest at its highest point and then descends on its (frictionless) track. Its speed is 36 m/s when it reaches ground level. What was its speed when its height was half that of its starting point?

answer
Answers: 3

Other questions on the subject: Physics

image
Physics, 21.06.2019 17:10, rebecca0022
Aspring with a mass of 2 kg has a damping constant 14 kg/s. a force of 3.6 n is required to keep the spring stretched 0.3 m beyond its natural length. the spring is stretched 0.6 m beyond its natural length and then released. find the position of the mass at any time t. (assume that movement to the right is the positive x-direction and the spring is attached to a wall at the left end.)
Answers: 3
image
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
image
Physics, 22.06.2019 15:30, haileyjones732
Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.
Answers: 1
image
Physics, 23.06.2019 03:30, alejandra340
The applied force of 3 washers will increase the applied force on the car to n.
Answers: 1
Do you know the correct answer?
A roller coaster starts from rest at its highest point and then descends on its (frictionless) track...

Questions in other subjects:

Konu
Mathematics, 22.04.2021 19:40
Konu
Mathematics, 22.04.2021 19:40
Konu
English, 22.04.2021 19:40
Konu
English, 22.04.2021 19:40