| Cm/sfinish if they keep moving at this pace?10. A car travels between the 100 meter and 250 meter highway markers in 10 seconds. What is the average speedof the car during this interval?v=(250-100)/10=115 m/s11. **Car A, moving in a straight line at a constant speed of 20 meters per second, is initially 200 meters behind carB, moving in the same straight line at a constant speed of 15 meters per second. How far must car A travel fromthis initial position before it catches up with car B?9) 1.3 n10) 0.7 n11) 5 m/29

Answered: Image /qna-images/answer/5b19f825-6b67-4d05-9f49-450f5b6b529f.jpg

Answered: 07. At this point, they have 3.4 miles…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 30CQ: Consider the velocity vs. time graph of a person in an elevator shown in Figure 2.58. Suppose the...

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(a) By taking the slope of the curve in Figure 2.60, verify that the velocity of the jet car is 115 m/sat t=20 S. (b) By taking the slope of the curve at any point in Figure 2.61, verify that the jet car's acceleration is 5.0 m/s2.
A blue car travels down a straight road at a constant speed of 18.9 m/s. As they pass a red car, initially stopped on the side of the road, the red car speeds up at a rate of 2.01 m/s2. How much distance (in m) does the blue car travel before the red car overtakes the blue car?
A car starts its rectilinear motion with an acceleration of 6.0 m/s2which it maintains for 4.0 s.for 4.0 s. in the next 8.0 s it moves with constant velocity and then, applying the brakes, it decelerates with a magnitudethe brakes, it decelerates with a magnitude of -10.0 m/s2 until it stops.until it stops. Determine:(a) The total distance traveled.(b) Make the graph ?⃗ - ?? - ? of the entire motion.
1. A person drops a stone from the top of a bridge that is 28.6m high. How long (in s) will it take the stone to hit the water? 2. A marathon runner runs with an average velocity of 2.4m/s. How long (in seconds) does it take for the runner to travel 74.7m? 3. An object that has been moving with a speed of 5m/s for 10s can have a zero displacement YES OR NO? 4. Which branch of physics is kinematics a part of?
2. (a) A car travels at a constant velocity 50 km h-1 for 100 km. It then speeds up to 100 km h-1for another 100 km. (i) Sketch the velocity against time graph.(ii) Calculate the car average speed for the 200 km trip in unit km h-1
A sports car starts from rest at an intersection and accelerates toward the east on a straight road at 8.0 m/s2m/s2. Just as the sports car starts to move, a bus traveling east at a constant 16 m/sm/s on the same straight road passes the sports car. When the sports car catches up with and passes the bus, how much time has elapsed?
A man runs at a constant 4m/s for 40s and then runs @ 8m/s back to his starting position. A. Total time of run ? B. Total distance covered? C. Avg speed D. Displacement at end of trip ? E. Avg. Velocity and direction if any ? How do you solve this ? Thank you
What is the total time it takes for a ball that is tossed straight up at 10 m/s to reach the top of its path and then return to its starting point? Hint: since the ball returns to its starting point, what is its displacement? Your answer should be in units of seconds but you should only submit the number for your answer
A van travels a distance d=28 m in the positive x-direction in a time of t=19.5 s. The van immediately brakes and comes to rest in t2=6 s. What are the van's average velocity in the horizontal direction, in meters per second, during t1? What was the acceleration, in meters per second squared, during time interval t1, assuming the van started from rest and moved with a constant acceleration? What was the van's instanteous velocity in the horizontal direction, in meters per second, when it began braking? Using the result from part (c), what was the van's horizontal component of acceleration, in meters persocod squared, during the braking period?
Amir starts riding his bike up a 194-m-long slope at a speed of 5 m/s, decelerating at -0.2 m/s2 as he goes up. At the same instant, Becky starts down from the top at a speed of -2 m/s, accelerating at -0.45 m/s2 as she goes down. How far has Amir ridden when they pass each other?
You're driving down the highway late one night at 21 m/s when a deer steps onto the road 38 m in front of you. Your reaction time before stepping on the brakes is 0.50 s , and the maximum deceleration of your car is 10 m/s2. How much distance is between you and the deer when you come to a stop?
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