Solution Found!
(II) A sports car accelerates approximately as shown in
Chapter 2, Problem 56P(choose chapter or problem)
(II) A sports car accelerates approximately as shown in the velocity–time graph of Fig. 2–43. (The short flat spots in the curve represent manual shifting of the gears.) Estimate the car’s average acceleration in () second gear and (
) fourth gear.
FIGURE 2-43 Problem 56. The velocity of a car as a function of time, starting from a dead stop. The flat spots in the curve represent gear shifts.
Equation Transcription:
Text Transcription:
v(m/s)
t(s)
Questions & Answers
QUESTION:
(II) A sports car accelerates approximately as shown in the velocity–time graph of Fig. 2–43. (The short flat spots in the curve represent manual shifting of the gears.) Estimate the car’s average acceleration in () second gear and (
) fourth gear.
FIGURE 2-43 Problem 56. The velocity of a car as a function of time, starting from a dead stop. The flat spots in the curve represent gear shifts.
Equation Transcription:
Text Transcription:
v(m/s)
t(s)
ANSWER:
Step 1 of 3
(a)
For second gear,
Initial velocity is estimated to be
Final velocity is estimated to be
Initial time when the gear is shifted:
Final time when the gear is upshift:
