Answered: A ball was dropped from the top of a…

A ball was dropped from the top of a building. If the ball was from a height of 339 meters from the ground, find the speed of the ball 3 seconds after it was dropped.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 73P: A seagull can fly at a velocity of 9.00 m/s in still air. (a) If it takes the bird 20.0 mm to travel...

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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

A ball was dropped from the top of a
building. If the ball was from a height
of 339 meters from the ground, find
the speed of the ball 3 seconds after it
was dropped.
= 0 m/s
y
t = 3.00 s
Select one:
a. 3325.5900 m/s
b. 0.0289 m/s
c. 348.8100 m/s
d. 29.4300 m/s

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