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26 Nov 2019

Cars A and B are racing each other along the same straight road inthe following manner: Car A has a head start and is a distance D_Abeyond the starting line at t = 0. The starting line is at x=0. CarA travels at a constant speed v_A. Car B starts at the startingline but has a better engine than Car A, and thus Car B travels ata constant speed v_B, which is greater than v_A.


PART A:

How long after Car B started the race will Car B catch up with CarA?



PART B:
How far from Car B's starting line will the cars be when Car Bpasses Car A?

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Bunny GreenfelderLv2
26 Nov 2019
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Cars A and B are racing each other along the same straight road inthe following manner: Car A has a head start and is a distance D_Abeyond the starting line at t = 0. The starting line is at x=0. CarA travels at a constant speed v_A. Car B starts at the startingline but has a better engine than Car A, and thus Car B travels ata constant speed v_B, which is greater than v_A.
1)How long after Car B started the race will Car B catch up withCar A?
2)How far from Car B's starting line will the cars be when Car Bpasses Car A?

B)In this problem, you will apply kinematic equations to a jumpingflea. Take the magnitude of free-fall acceleration to be 9.80m/s^2. Ignore air resistance.
1)A flea jumps straight up to a maximum height of 0.450 m. What isits initial velocity v_0 as it leaves the ground?
2)How long is the flea in the air from the time it jumps to thetime it hits the ground?
















































































































































































Cars A and B are racing each other, along the same, straight road in the following manner:

Car A has a head start, and is a distance, , beyond the starting line, at t = 0. The starting line is at x = 0. Car A travels at a constant speed, .

Car B starts at the starting line but has a better engine than Car A, and thus Car B travels at a constant speed which is greater than .

A. How long, after Car B started the race, will Car B catch up with Car A?

To demonstrate the tremendous acceleration of a top fuel dragracer, you attempt to run your car into the back of a dragster thatis "burning out" at the red light before the start of a race.(Burning out means spinning the tires at high speed to heat thetread and make the rubber sticky.)

You drive at a constant speed of toward the stopped dragster, notslowing down in the face of the imminent collision. The dragsterdriver sees you coming but waits until the last instant to put downthe hammer, accelerating from the starting line at constantacceleration, . Let the time at which the dragster starts toaccelerate be .

a- What is , the longest time after the dragster begins toaccelerate that you can possibly run into the back of the dragsterif you continue at your initial velocity?

b- Assuming that the dragster has started at the last instantpossible (so your front bumper almost hits the rear of the dragsterat ), find your distance from the dragster when he started. If youcalculate positions on the way to this solution, choose coordinatesso that the position of the drag car is 0 at . Remember that youare solving for a distance (which is a magnitude, and can never benegative), not a position (which can be negative).

c- Find numerical values for and in seconds and meters for the(reasonable) values (26.8 m/s) and .
Separate your two numerical answers by commas, and give your answerto two significant figures.

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