The first hill of a roller coaster is 42.0 meters high. The roller coaster drops to a height of
4.2 meters above the ground at the bottom of this first hill. If the mass of the roller
coaster is 34,500 kg, what is the velocity at the bottom of the first hill? Ignore friction and
assume the velocity at the top of the first hill is 0 m/s.
Answers: 3
Physics, 22.06.2019 00:30
What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body
Answers: 1
Physics, 22.06.2019 05:30
Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n
Answers: 2
Physics, 22.06.2019 06:30
From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.
Answers: 1
The first hill of a roller coaster is 42.0 meters high. The roller coaster drops to a height of
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