3.18 • A shot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0° above the horizon- tal. The shot hits the ground 2.08 8 later. You can ignore air resist- ance. (a) What are the components of the shot's acceleration while in flight? (b) What are the components of the shot's velocity at the beginning and at the end of its trajectory? (c) How far did she throw the shot horizontally? (d) Why đoes the expression for R in Example 3.8 not give the correct answer for part (c)? (e) How high was the shot above the ground when she released it? (f) Draw x-t, y-t, Uri, and vyt graphs for the motion.

3.18 • A shot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0° above the horizon- tal. The shot hits the ground 2.08 8 later. You can ignore air resist- ance. (a) What are the components of the shot's acceleration while in flight? (b) What are the components of the shot's velocity at the beginning and at the end of its trajectory? (c) How far did she throw the shot horizontally? (d) Why đoes the expression for R in Example 3.8 not give the correct answer for part (c)? (e) How high was the shot above the ground when she released it? (f) Draw x-t, y-t, Uri, and vyt graphs for the motion.

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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Concept explainers

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.

Question

3.18 • A shot putter releases the shot some distance above the
level ground with a velocity of 12.0 m/s, 51.0° above the horizon-
tal. The shot hits the ground 2.08 s later. You can ignore air resist-
ance. (a) What are the components of the shot's acceleration while
in flight? (b) What are the components of the shot's velocity at the
beginning and at the end of its trajectory? (c) How far did she
throw the shot horizontally? (d) Why đoes the expression for R in
Example 3.8 not give the correct answer for part (c)? (e) How high
was the shot above the ground when she released it? (f) Draw x-t,
y-f, vri, and vy-t graphs for the motion.

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