Modified True/False - indicate whether the sentence or statement is true or false. If the statement is false,correct the statement to make it true.12. An object in uniform circular motion has a constant velocity while experiencing centripetal acceleration.13. An object travelling in uniform circular motion experiences an outward centrifugal force that tends to pullthe object out of the circular path.14. An object with less inertia can resist changes in motion more than an object with more inertia.15. For an object sliding on a horizontal surface with a horizontal applied force, the frictional force will alwaysincrease as the applied force increases.

13. An item touring in a uniform round movement studies an outward centrifugal force that tends to…

Answered: Modified True/False - indicate whether…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter10: Rotational Motion And Angular Momentum

Section: Chapter Questions

Problem 2CQ: Explain why centripetal acceleration changes the direction of velocity in circular motion but not...

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Similar questions

The Moon's mass is 7.35 1022 kg, and it moves in a nearly circular orbit with radius 3.84 108 m. The period of its motion is 27.3 days. Use this, information to determine the Moon's (a) orbital speed and (b) its acceleration.
Can centripetal acceleration change the speed of circular motion? Explain.
The eye of a hurricane passes over Grand Bahama Island in a direction 60.0 north of west with a speed of 41.0 km/h. Three hours later the course of the hurricane suddenly shifts due north, and its speed slows to 25.0 km/h. How far from Grand Bahama is the hurricane 4.50 h after it passes over the island?
Are we accelerating as a consequence of the Earth spinning on its axis? Explain.
Review. As it passes over Grand Bahama Island, the eye of a hurricane is moving in a direction 60.0 north of west with a speed of 41.0 km/h. (a) What is the unit-vector expression for the velocity of the hurricane? It maintains this velocity for 3.00 h. at which time the course of the hurricane suddenly shifts due north, and its speed slows to a constant 25.0 km/h. This new velocity is maintained for 1.50 h. (b) What is the unit-vector expression for the new velocity of the hurricane? (c) What is the unit-vector expression for the displacement of the hurricane during the first 3.00 h? (d) What is the unit-vector expression for the displacement of the hurricane during the latter 1.50 h? (e) How far from Grand Bahama is the eye 4.50 h after it passes over the island?
A runner taking part in the 200 m dash must run around the end of a track that has a circular arc with a radius of curvature of 30 m. If he completes the 200 m dash in 23.2 s and runs at constant speed throughout the race, what is the magnitude of his centripetal acceleration as he runs the curved portion of the track?
Astronauts walking on the Moon are seen bounding rather than walking normally. Why?
(a) Calculate Earth's average speed relative to the Sun. (b) What is its average velocity over a period of one year?
Math Review A circular track has a radius of 125 m. (a) Calculate the distance around the track. (b) If a runner jogs 275 m along the track, through what angle has he run?
A small container of water is placed on a turntable inside a microwave oven, at a radius of 12.0 cm from the center. The turntable rotates steadily, turning one revolution in each 7.25 s. What angle does the water surface make with the horizontal?
A roller coaster moves 2.00 102 ft horizontally and then rises 135 ft at an angle of 30.0 above the horizontal. Next, it travels 135 ft at an angle of 40.0 below the horizontal. Use graphical techniques to find the roller coasters displacement from its starting point to the end of this movement.
(a) What is the radius of a bobsled turn banked at 75.0° and taken at 30.0 m/s, assuming it is ideally banked? (b) Calculate the centripetal acceleration. (c) Does this acceleration seem large to you?

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