1: Why do the passengers in a roller coaster car feel heavier than their true weight as the car goes through the bottom of a loop-the-loop? A) The ride gains mass at the bottom of the loop. B) The normal force exceeds the force of gravity so the car can execute circular motion centered around a point above the riders’ heads. C) Gravity gets stronger at the bottom because they are closer to the center of the Earth. D) The car needs a greater push to get through the loop-the-loop.

1: Why do the passengers in a roller coaster car feel heavier than their true weight as the car goes through the bottom of a loop-the-loop? A) The ride gains mass at the bottom of the loop. B) The normal force exceeds the force of gravity so the car can execute circular motion centered around a point above the riders’ heads. C) Gravity gets stronger at the bottom because they are closer to the center of the Earth. D) The car needs a greater push to get through the loop-the-loop.

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Description: **1: Why do the passengers in a roller coaster car feel heavier than their true weight as the car goes through the bottom of a loop-the-loop?**A) The ride gains mass at the bottom of the loop.B) The normal force exceeds the force of gravity so the c

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!

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Question

**1: Why do the passengers in a roller coaster car feel heavier than their true weight as the car goes through the bottom of a loop-the-loop?**

A) The ride gains mass at the bottom of the loop.

B) The normal force exceeds the force of gravity so the car can execute circular motion centered around a point above the riders’ heads.

C) Gravity gets stronger at the bottom because they are closer to the center of the Earth.

D) The car needs a greater push to get through the loop-the-loop.

---

**2: The free-fall acceleration at the surface of planet 1 is x m/s². The radius and the mass of planet 2 are three times those of planet 1. What is the free-fall acceleration on planet 2?**

A) 9x m/s²

B) 3x m/s²

C) x/3 m/s²

D) x m/s² (same as planet 1)

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