When a roller coaster goes in an upside-down loop, which of the following is true?
A: th...
When a roller coaster goes in an upside-down loop, which of the following is true?
A: the force reasonable for circular motion is acting toward the middle of the loop.
B:the force reasonable for circular motion is a ting all the way to the ground.
C: the force reasonable for circular motion is acting toward the top of the loop.
D: no force is acting on the roller coaster.
Answers: 2
Physics, 22.06.2019 14:30, willoughbysierra
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
Answers: 1
Physics, 22.06.2019 16:40, odalysesquermon
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Answers: 1
Physics, 23.06.2019 00:30, briseisr20
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Physics, 23.06.2019 02:30, elishane864
Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.
Answers: 2
Mathematics, 22.10.2020 16:01
Mathematics, 22.10.2020 16:01