A sports car (and its occupants) of mass M is moving over the rounded top of a hill of radius R. At the instant when the car is at the very top of the hill, the car has a speed v. You can safely neglect air resistance. (A) At the instant when the car is at the very top of the hill, draw a force diagram for the car (B) Starting from Newton's 2nd law, calculate the force exerted by the road on the car. (C) Under what conditions will the force exerted by the road on the car be zero?

A sports car (and its occupants) of mass M is moving over the rounded top of a hill of radius R. At the instant when the car is at the very top of the hill, the car has a speed v. You can safely neglect air resistance. (A) At the instant when the car is at the very top of the hill, draw a force diagram for the car (B) Starting from Newton's 2nd law, calculate the force exerted by the road on the car. (C) Under what conditions will the force exerted by the road on the car be zero?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 42P: Suppose the mass of a fully loaded module in which astronauts take off from the Moon is 1.00104kg ....

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Suppose the mass of a fully loaded module in which astronauts take off from the Moon is 1.00104kg . The thrust of its engines is 3.00104N . (a) Calculate the module’s magnitude of acceleration in a vertical takeoff from the Moon. (b) Could it lift off from Earth? If not, why not? If it could, calculate the magnitude of its acceleration.
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