Hw.1 1. With a starting velocity of 60 m/s, a tiny projectile is launched vertically downward into a fluid medium. The projectile decelerates by a = (-0.4v) m/s? due to the fluid's drag resistance, where v is measured in m/s. Calculate the projectile's velocity and position 4 s after it is fired. 2. Starting from rest, a particle moving in a straight line has an acceleration of a = (2t - 6) m>s2, where t is in seconds. What is the particle's velocity when t = 6 s, and what is its position when t = 11 s? %3D
Hw.1 1. With a starting velocity of 60 m/s, a tiny projectile is launched vertically downward into a fluid medium. The projectile decelerates by a = (-0.4v) m/s? due to the fluid's drag resistance, where v is measured in m/s. Calculate the projectile's velocity and position 4 s after it is fired. 2. Starting from rest, a particle moving in a straight line has an acceleration of a = (2t - 6) m>s2, where t is in seconds. What is the particle's velocity when t = 6 s, and what is its position when t = 11 s? %3D
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter1: Introduction To Statics
Section: Chapter Questions
Problem 1.19P: Plot the earths gravitational acceleration g(m/s2) against the height h (km) above the surface of...
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![Hw.1
1. With a starting velocity of 60 m/s, a tiny projectile is launched vertically
downward into a fluid medium. The projectile decelerates by a = (-0.4v)
m/s? due to the fluid's drag resistance, where v is measured in m/s.
Calculate the projectile's velocity and position 4 s after it is fired.
2. Starting from rest, a particle moving in a straight line has an acceleration
of a = (2t - 6) m>s2, where t is in seconds. What is the particle's velocity
when t = 6 s, and what is its position when t = 11 s?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F652039c3-afe3-4d44-bd04-ddf50184e7f6%2Fd86f1510-7b8f-4a56-9df4-268f47398feb%2Ft54tcq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Hw.1
1. With a starting velocity of 60 m/s, a tiny projectile is launched vertically
downward into a fluid medium. The projectile decelerates by a = (-0.4v)
m/s? due to the fluid's drag resistance, where v is measured in m/s.
Calculate the projectile's velocity and position 4 s after it is fired.
2. Starting from rest, a particle moving in a straight line has an acceleration
of a = (2t - 6) m>s2, where t is in seconds. What is the particle's velocity
when t = 6 s, and what is its position when t = 11 s?
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