4. How do you move so the graph goes up steeply at first, and then contin-ues up less steeply?Time5. How do you walk to create a U-shaped graph?TimePositionPosition

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Answered: 4. How do you move so the graph goes up…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section: Chapter Questions

Problem 76A

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Similar questions

A spacecraft lands on a newly discovered planet orbiting the star 51 Pegasi. To measure the acceleration from gravity on the planet, an astronaut drops a rock from a height of 2 m. A precision timer indicates that it takes the rock 0.71 s to fall to the surface. What is the acceleration from gravity on this planet?
A fireworks shell is accelerated from rest to a velocity of 65.0 m/s over a distance of 0.250 m. (a) How long did the acceleration last? (b) Calculate the acceleration.
What is the speed of the bird in Exercise 2.4?
A speedboat moving at 30.0 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boat with a constant acceleration of -3.50 m/s2 by reducing the throttle, (a) How long does it take the boat to reach the buoy? (b) What is the velocity of the boat when it reaches the buoy?
Construct the displacement graph for the subway shuttle train as shown in Figure 2.18(a). Your graph should show the position of the train, in kilometers, from t=0 to 20 s. You will need to use the information on acceleration and velocity given in the examples for this figure.
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An ice sled powered by a rocket engine sum from rest on a large frozen lake and accelerates at + 40 ft/s2. After some time t1, the rocket engine is shut down and the sled moves with constant velocity v for a time t2. If the total distance traveled by the sled is 17 500 ft and the total time is 90 s. find (a) the times t1 and t2 and (b) the velocity v. At the 17 500-ft mark, the sled begins to accelerate at 20 ft/s2. (c) What is the final position of the sled when it comes to rest? (d) How long does it take to come to rest?
Acceleration is the change in velocity over time. Given this information, is acceleration a vector or a scalar quantity? Explain.
A car accelerates from rest at 4 m/s2. What is the velocity of the car after 4 seconds? What is the distance travelled by the car in 3 seconds?
A sprinter moving at 10 m/s slow down at the rate of 1.4 m/s2.How fast is the runner moving after 3 seconds?
Mary gives toy car an initial 5.0 m/s velocity. If the car experiences a constant 2.0 m/s2 acceleration, what is the car’s final velocity after 6.0 s? What is the meaning of the slope of a velocity-time graph? What is the meaning of the area under a velocity-time graph?
The drivers reaction time is equal to 0.65 s and the brakes stop the vehicle with an acceleration of 5.5 m/s² . What is the total stopping distance if the driver sees an obstacle when the car is moving at a speed of 80 km/h?

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4. How do you move so the graph goes up steeply at first, and thên contin- ues up less steeply? Time