Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
16th Edition
ISBN: 9781259663895
Author: KRAUSKOPF, Konrad B.
Publisher: Mcgraw-hill Higher Education (us)
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Textbook Question
Chapter 2, Problem 5MC
In which of the following examples is the motion of the car not accelerated?
- a. A car turns a corner at the constant speed of 20 km/h.
- b. A car climbs a steep hill with its speed dropping from 60 km/h at the bottom to 15 km/h at the top.
- c. A car climbs a steep hill at the constant speed of 40 km/h.
- d. A car climbs a steep hill and goes over the crest and down on the other side, all at the same speed of 40 km/h.
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The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE ONLY TRIGNOMETRIC FUNCTIONS (SIN/TAN/COS, NO LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
Chapter 2 Solutions
Connect with LearnSmart for Krauskopf: The Physical Universe, 16e
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