1. A balloon is rising with a velocity of 2 m/s when a bag of sand is released. If the height at the time of releaseis 120 m, how long does it take the bag of sand to reach the ground?2. A rocket car moves along a straight track according to the equation x = 3t° + t+ 2, where x is in feet and t isin seconds. Determine thea.) displacement,b.) velocity, andc.) acceleration when t = 4S.d.) What is the average acceleration during the fifth second?6Vs. When t=2s its3. A particle moves along a horizontal straight line with an acceleration a =displacement is s = 27 ft and its velocity v = 27 ft/s.Calculate thea.) velocity andb.) acceleration of the point when t= 4s.

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Answered: 1. A balloon is rising with a velocity…

1. A balloon is rising with a velocity of 2 m/s when a bag of sand is released. If the height at the time of release is 120 m, how long does it take the bag of sand to reach the ground?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Concept explainers

Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

Question

1. A balloon is rising with a velocity of 2 m/s when a bag of sand is released. If the height at the time of release
is 120 m, how long does it take the bag of sand to reach the ground?
2. A rocket car moves along a straight track according to the equation x = 3t° + t+ 2, where x is in feet and t is
in seconds. Determine the
a.) displacement,
b.) velocity, and
c.) acceleration when t = 4S.
d.) What is the average acceleration during the fifth second?
6Vs. When t=2s its
3. A particle moves along a horizontal straight line with an acceleration a =
displacement is s = 27 ft and its velocity v = 27 ft/s.
Calculate the
a.) velocity and
b.) acceleration of the point when t= 4s.

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