PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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Car A is traveling at the constant speed of 48 km/h as it rounds the circular curve of 295-m radius and at the instant represented is at the position θ = 49°. Car B is traveling at the constant speed of 64 km/h and passes the center of the circle at this same instant. Car A is located with respect to car B by polar coordinates r and θ with the pole moving with B. For this instant determine vA/B and the values of r˙ and θ˙ as measured by an observer in car B.
Find vA/B and vA/B.
vA/B =
( ______i + ____j) m/s
vA/B =
______ m/s
Car A is traveling at the constant speed of 58 km/h as it rounds the circular curve of 350-m radius and at the instant represented is at the position θ = 42°. Car B is traveling at the constant speed of 69 km/h and passes the center of the circle at this same instant. Car A is located with respect to car B by polar coordinates r and θ with the pole moving with B. For this instant determine vA/B and the values of r˙ and θ˙ as measured by an observer in car B.
For this instant determine the values of r˙ and θ˙ as measured by an observer in car B.Answers:
r˙ =
m/s
θ˙ =
rad/s
Car A is traveling at the constant speed of 58 km/h as it rounds the circular curve of 350-m radius and at the instant represented is at the position θ = 42°. Car B is traveling at the constant speed of 69 km/h and passes the center of the circle at this same instant. Car A is located with respect to car B by polar coordinates r and θ with the pole moving with B. For this instant determine vA/B and the values of r˙ and θ˙ as measured by an observer in car B.
Write vA/B in terms of the polar coordinates.
Answer: vA/B = ( ___ er +____ eθ) m/s
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