Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN: 9781305116399

Author: Raymond A. Serway, John W. Jewett

Publisher: Cengage Learning

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Kathy tests her new sports car by racing with Sian, an experienced racer. Both start from rest, but Kathy leaves the starting line 1.00 s after Stan does. Stan moves with a constant acceleration of 3.50 m/s2, while Kathy maintains an acceleration of 4.90 m/s2. Find (a) the time at which Kathy overtakes Stan, (b) the distance she travels before she catches him, and (c) the speeds of both cars at the instant Kathy overtakes Stan.

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A fictional spaceship accelerates at a constant rate of 0.102 m/s2.
(a) How long would it take to reach the moon, 3.63 108 m away?(b) What would be its final velocity?

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Kathy tests her new sports car by racing with Sian, an experienced racer. Both start from rest, but Kathy leaves the starting line 1.00 s after Stan does. Stan moves with a constant acceleration of 3.50 m/s2, while Kathy maintains an acceleration of 4.90 m/s2 . Find (a) the time at which Kathy overtakes Stan, (b) the distance she travels before she catches him, and (c) the speeds of both cars at the instant Kathy overtakes Stan.

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You’re driving down the highway at 20 m/s when a deer steps onto the road 35 m infront of you. Your reaction time before stepping on the brakes is 0.50 s. Once you stepon the brakes, your car undergoes a constant acceleration of −10 m/s2.(a) How much distance is between your car and the deer when you come to a stop?
(b) What is the maximum speed you could have started with and still not hit thedeer?

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Hello, I had a physics question. "Just as the traffic light changes to green, a Mustang drives through the intersection at a constant velocity of 14.2 m/s [N]. A Camaro that was stopped at the light accelerates from rest at 2.9 m/s^2 [N]. How much time passes before the two cars meet again? How far have they travelled? I figured out how to do the question but I'm really confused on the units of the distance. I used the d = v/t formula and the vit + 1/2at^2 formula but the units I ended up getting were m^2/s^3 for distance when it should just be m.

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Two football players are on course for a head on collision, initially separated by 112 m. Player A is already moving constantly at 32 km/hr.. Player B is slow to react, and is stationary for the first 1.3 s before accelerating at a rate of 2.3 m/s 2 .
a. How much time will pass before they collide?
b. How much distance did Player A travel?
c. How fast is Player B travelling right before they collide?

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Just as the traffic light changes to green, a Mustang drives through the intersection at a constant velocity of 14.2 m/s [N]. A Camaro, that was stopped at the light, accelerates from rest at 2.9 m/s2 [N]. How much time passes before the two cars meet again? How far have they travelled?

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Julie is walking around a track a 2m/s for some exercise. She then decides to start jogging so she accelerates at a rate of 0.5m/s? for 3 seconds. How far did Julie travel from the time she started to accelerate to the end of the 3 seconds?

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A race car moves such that its position fits the relationship
x = (6.0 m/s)t + (0.80 m/s3)t3
where x is measured in meters and t in seconds.
(a) A plot of the car's position versus time is which of the following?
(b) Determine the instantaneous velocity of the car at
t = 3.7 s, using time intervals of 0.40 s, 0.20 s, and 0.10 s. (In order to better see the limiting process keep at least three decimal places in your answer.)
(c) Compare the average velocity during the first 3.7 s with the results of part (b).
The average velocity of m/s is ---Select--- much less than about the same as much greater than the instantaneous velocity

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a motorist suddenly notices a stalled car and slams on the brakes, decelerating at the rate of 6.3 meter per second square. unfortunately, this isn't good enough, and a collision ensues. from the damage sustained, police estimate that the car was moving at 18km/h at the time of collision. they also measures skid marks 34m long. (a) how fast was the motorist going when brakes were first applied? (b) how much time was elapsed from the initial braking to the collision?

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A driver is traveling 18.0 m/s when she sees a red light ahead. Her car is capable of decelerating at a rate of 3.40 m/s^2
A.) If it takes her 0.420 s to get the brakes on and she is 20.0 m from the intersection when she sees the light, will she be able to stop in time?
Answer: No
B.)How far from the beginning of the intersection will she be?
I know the answer is not 47.64 or 10.21. Please HELP solve for B!

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I'm struggling with this question:You are stopped at a red light, waiting for it to turn green. At the instant the light turns green, a truck in the next lane passes you, traveling at a constant velocity of 15 m/s. One second later, you begin accelerating with a constant a = 6.0 m/s^2.(1) How much time does it take for you to catch up to the other car?
I don't get how I'm supposed to find how much time it will take to catch up from just constant acceleration and constant velocity. Any hints that you can give me?

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