Fundamentals Of Physics
11th Edition
ISBN: 9781119286240
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: WILEY
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Chapter 4, Problem 7Q
An airplane flying horizontally at a constant speed of 350 km/h over level ground releases a bundle of food supplies. Ignore the effect of the air on the bundle. What are the bundle’s initial (a) vertical and (b) horizontal components of velocity? (c) What is its horizontal component of velocity just before hitting the ground? (d) If the airplane’s speed were, instead, 450 km/h, would the time of fall be longer, shorter, or the same?
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An airplane flying horizontally at a constant speed of 350 km/h over level ground releases a bundle of food supplies. Ignore the effect of the air on the bundle.What are the bundle’s initial (a) vertical and (b) horizontal components of velocity? (c) What is its horizontal component of velocity just before hitting the ground? (d) If the airplane’s speed were, instead, 450 km/h, would the time of fall be longer, shorter, or the same?
A rock is thrown off a cliff at an angle of 53° with respect to the horizontal. The cliff is 100 m high. The initial speed of the rock is 30 m/s. (a) How high above the edge of the cliff does the rock rise? (b) How far has it moved horizontally when it is at maximum altitude? (c) How long after the release does it hit the ground? (d) What is the range of the rock? (e) What are the horizontal and vertical positions of the rock relative to the edge of the cliff at t = 2.0 s, t = 4.0 s, and t = 6.0 s?
An airplane flies horizontally at a speed of 541 km/h and drops a crate that falls to the horizontal ground below. Neglect air resistance. Part (a) If the altitude of the plane was 570 m, then how far, horizontally in meters, did the crate move as it fell to the ground? Part (b) What was the speed of the crate, in m/s, just before it hit the ground?
Chapter 4 Solutions
Fundamentals Of Physics
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