class on time and that classroom is 156 m east of where you are right now. First you run to your dorm room at an average velocity of 4.48 m/s to the south to pick up your calculator and your dorm room is 189 m south of where you were initially. What average velocity (magnitude only) do you now need to run from your dorm room to your classroom to arrive exa

class on time and that classroom is 156 m east of where you are right now. First you run to your dorm room at an average velocity of 4.48 m/s to the south to pick up your calculator and your dorm room is 189 m south of where you were initially. What average velocity (magnitude only) do you now need to run from your dorm room to your classroom to arrive exa

Name: You have exactly 5 minutes 14 seconds to get to your next class on tim
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Description: You have exactly 5 minutes 14 seconds to get to your next class on time and that classroom is 156 m east of where you are right now. First you run to your dorm room at an average velocity of 4.48 m/s to the south to pick up your calculator and your d

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 84A

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You have exactly 3 minutes 31 seconds to get to your next class on time and that classroom is 371 m east of where you are right now. First you run to your dorm room at an average velocity of 4.84 m/s to the south to pick up your calculator and your dorm room is 133 m south of where you were initially. What average velocity (magnitude only) do you now need to run from your dorm room to your classroom to arrive exactly on time? 1.87 m/s 4.84 m/s 2.15 m/s 2.39 m/s
I drive in the positive y direction for 100 seconds at a velocity of 20 m/s. Then I go with a velocity of 8 m/s at an angle of 25 degrees up from the positive x axis for 800 seconds. Then I travel in the positive x direction at 31 m/s for 600 seconds. What will the (x,y) coordinates of my position be at the end. ( make the starting point (0,0)).
A student standing on a cliff throws a stone from a vertical height of d=8.0m above the level ground with velocity v0=18m/s at an angle θ=17∘ below the horizontal.. It moves without air resistance. Use a Cartesian coordinate system with the origin at the initial position of the stone.\ A) With what speed, in meters per second, does the stone strike the ground? B) If the stone had been thrown from the clifftop with the same initial speed and the same angle, but above the horizontal, would its impact velocity be different?
You pilot an airplane with the intent to fly 399 km in a direction 51.0 ° south of east from the starting airport. Air traffic control requires you to first fly due south for 81.5 km A) After completing the 81.5-km flight due south, how far are you from your destination? B) In what direction should you point your airplane to complete the trip? Give your answer as an angle relative to due C) your airplane has an average ground speed of 477 km/h, what estimated time of travel should you give to your passengers after completing the initial 81.5 km south? Plz include units.
Irina, standing on the edge of a cliff, throws a stone at a 40-degree angle above the horizontal with an initial speed of 10.0 m/s. The instant before the stone hits the ground below, it is traveling at a speed of 54 m/s. If Irina were to throw the other rock at a 40-degree angle below the horizontal from the cliff instead, with the same initial speed of 10.0 m/s, what is the magnitude of the velocity of the stone just before it hits the ground? Ignore any effects of air resistance.
A firework is launched with an initial velocity of 25 m/s at an angle of 60 degrees with respect to the horizontal. a. The horizontal component of the firework’s velocity, just before it reaches the peak of its motion (where it will explode)?b. The vertical component of the firework’s velocity, at a time 0.4 seconds after it was launched.c. The magnitude and direction of the acceleration of the firework, at a time 0.4 seconds after it was launched.
A pilot wishes to fly his plane to an airport north of his current location.The plane has a speed of 290m/s. 1)If he is confronted by a wind blowing east of 50m/s,in what direction will he need to head in order to reach the desired destination? 2)How long will it take him to reach the airport if it is 800km away?
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A student standing on a cliff throws a rock from a vertical height of d=8.0md=8.0m above the level ground with velocity v0=16m/sv0=16m/s at an angle θ=26∘θ=26∘ below the horizontal, as shown. It moves without air resistance. Use a Cartesian coordinate system with the origin at the initial position of the rock.a. With what speed, in meters per second, does the stone strike the ground? b. If the rock had been thrown from the clifftop with the same initial speed and the same angle, but above the horizontal, would its impact velocity be different?
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During service, a tennis ball is struck at height h = 1.7 m above a tennis court and moves with velocity v0 = v0xi. Assume the ball encounters no air resistance, and use a Cartesian coordinate system with the origin located at the ball's initial position. Randomized Variables h = 1.7 mv0x = 28.5 m/s a.)How long, tf in seconds, does the tennis ball move before striking the court? b.)How far horizontally from the service position, xf in meters, does the tennis ball move before striking the court?