Bill's train leaves at 8:06 AM and accelerates at a rate of 1 meter per second per second. Bill, who can run 3 meters per second, arrives at the train station 3 seconds after the train has left. (a) Find parametric equations that model the motions of the train and Bill as a function of time. (Hint: The position x at time t of an object having acceleration a is x = at.) (b) Determine algebraically whether Bill will catch the train. If so, when? (c) Simulate the motion of both by simultaneously graphing the equations found in part (a).

Algebra and Trigonometry (MindTap Course List)
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Author:James Stewart, Lothar Redlin, Saleem Watson
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Chapter8: Polar Coordinates And Parametric Equations
Section8.FOM: Focus On Modeling: The Path Of A Projectile
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Bill's train leaves at 8:06 AM and accelerates at a rate of 1 meter per second per second. Bill, who can run 3 meters per second,
arrives at the train station 3 seconds after the train has left.
(a) Find parametric equations that model the motions of the train and Bill as a function of time. (Hint: The position x at time t of an
1
object having acceleration a is x =
at)
(b) Determine algebraically whether Bill will catch the train. If so, when?
(c) Simulate the motion of both by simultaneously graphing the equations found in part (a).
....
(a) Let y,
= 2 be the path of Bill and y, = 4 be the path of the train.
What are the parametric equations describing Bill's motion?
O X1 = 3t, y, = 2
x, = 0.5, y, = 2
O X1 = 3(t- 3), y, = 2
O X1 = 3(t + 3), y, =2
What are the parametric equations describing the train's motion?
メゥ=1.5, y2 = 4
X2 = 0.5t, y2 = 4
O x2 =t, y2 = 4
X2
= 0.51, y2 = 4
(c) Which graph displays both equations from part (a) graphed simultaneously for 0<ts 13?
O A.
В.
Train
Train
Bill
Bill
100
100
С.
D.
Train
Train
Bill
Bill
100
Transcribed Image Text:Bill's train leaves at 8:06 AM and accelerates at a rate of 1 meter per second per second. Bill, who can run 3 meters per second, arrives at the train station 3 seconds after the train has left. (a) Find parametric equations that model the motions of the train and Bill as a function of time. (Hint: The position x at time t of an 1 object having acceleration a is x = at) (b) Determine algebraically whether Bill will catch the train. If so, when? (c) Simulate the motion of both by simultaneously graphing the equations found in part (a). .... (a) Let y, = 2 be the path of Bill and y, = 4 be the path of the train. What are the parametric equations describing Bill's motion? O X1 = 3t, y, = 2 x, = 0.5, y, = 2 O X1 = 3(t- 3), y, = 2 O X1 = 3(t + 3), y, =2 What are the parametric equations describing the train's motion? メゥ=1.5, y2 = 4 X2 = 0.5t, y2 = 4 O x2 =t, y2 = 4 X2 = 0.51, y2 = 4 (c) Which graph displays both equations from part (a) graphed simultaneously for 0<ts 13? O A. В. Train Train Bill Bill 100 100 С. D. Train Train Bill Bill 100
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