A spring cannon fires a marble at 45 ° up from horizontal going 2.0 m/s and starting 1.0 m above the floor. Assuming that the marble does not hit anything on its way to the floor, and ignoring air drag, which of the following is true of the | vx | (magnitude of the horizontal velocity component) and | vy | (magnitude of the vertical velocity component) of the marble as it goes up (but has not yet reached its maximum height)? a) | vx | Decreasing & | vy | Decreasing b) | vx | Constant & | vy | Decreasing c) | vx | Decreasing & | vy | Constant d) | vx | Constant & | vy | Constant e) None of these.

A spring cannon fires a marble at 45 ° up from horizontal going 2.0 m/s and starting 1.0 m above the floor. Assuming that the marble does not hit anything on its way to the floor, and ignoring air drag, which of the following is true of the | vx | (magnitude of the horizontal velocity component) and | vy | (magnitude of the vertical velocity component) of the marble as it goes up (but has not yet reached its maximum height)? a) | vx | Decreasing & | vy | Decreasing b) | vx | Constant & | vy | Decreasing c) | vx | Decreasing & | vy | Constant d) | vx | Constant & | vy | Constant e) None of these.

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Description: A spring cannon fires a marble at 45 ° up from horizontal going 2.0 m/s and starting 1.0 m above the floor. Assuming that the marble does not hit anything on its way to the floor, and ignoring air drag, which of the following is true of the | vx | (

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 1P: A motorist drives south at 20.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.00...

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