A ball is thrown with an upward velocity of 7 m/s from the top of a 11-m high building. One second later another ball is thrown vertically from the ground with a velocity of 13 m/s. Determine the height from the ground where the two balls pass each other.

A ball is thrown with an upward velocity of 7 m/s from the top of a 11-m high building. One second later another ball is thrown vertically from the ground with a velocity of 13 m/s. Determine the height from the ground where the two balls pass each other.

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 7OQ: A projectile is launched on the Earth with a certain initial velocity and moves without air...

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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.

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