48. mmh An astronaut on a distant planet wants to determine its accelera-tion due to gravity. The astronaut throws a rock straight up with a velocityof +15 m/s and measures a time of 20.0 s before the rock returns to hishand. What is the acceleration (magnitude and direction) due to gravityon this planet?

Answered: Image /qna-images/answer/c0a38faf-5f48-4aa0-92b0-a9670ddf136a.jpg

Answered: 48. mmh An astronaut on a distant…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 31CQ: A cylinder is given a push and then rolls up an inclined plane. If the origin is the starting point,...

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A particle travels m a circular orbit of radius 10 m. Its speed is changing at a rate of 15.0m/s2 at an instant when its speed is 40.0 m/s. What is the magnitude of the acceleration of the particle?
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IV. A stone dropped from a cliff hits the ground 3.00 slater. Assuming the acceleration due to gravity is 9.81m/s2 , finda. the velocity of the stone the instant before it hitsthe groundb. the displacement experienced by the stone init’s fall
I'm attempting to calculate acceleration for the following: A plane lands on a runway with a speed of 120 m/s, moving east, and it slows to a stop in 12.0 s. What is the magnitude and direction of the plane's average acceleration during this time interval? So far I've gotten to this point: (0m/s - 120m/s)= (-120m/s)= stuck here.. the answer must be in m/s2 (12s - 0s) (12s)
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.2) the position of a particle with respect to time is defined by:r(t) = rcos(cot )i +rsin(cot)j ,where r and w are constants.Demonstrate that the magnitude of the acceleration of the particle is constant.
A rocket ship is initially stationary on the launchpad. It accelerates at a rate of 3m/s/s for a time of 120s. How far does the rocket ship travel in this time?
1. A vehicle in linear motion, when stationary, within 14 sIt starts moving with an acceleration of 8 m/s² that smoothly goes down to zero andAt the end of 14 seconds, it continues to move at a constant speed. from the beginningHow long does it take to reach 850 m?.
A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the horse is 10.0 m/s, and the distance from the limb to the level of the saddle is 3.00 m. (a) What must be the horizontal distance between the saddle and limb when the ranch hand makes his move? (b) For what time interval is he in the air?
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