You are riding on a west bound train traveling at 19.3km/hr. You getup and walk 3.6 km/hrwestward relative to the train. What is your resultant velocity? (Record the speed first then the angleusing a mathematical compass betweeno deg and 359.9 deg)Submit Answer Tries 0/10You turn and walk at the same speed eastward. What is your resultant velocity?Submit AnswerTries 0/10You turn an walk at the samespeed directly north. What is your resultant velocity?Submit AnswerTries 0/10

Answered: Image /qna-images/answer/a6d90538-552d-4e49-bb9c-deebb4ea870d.jpg

Answered: You are riding on a west bound train…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 2.1CYU: Check Your Understanding Two motorboats named Alice and Bob are moving on a lake. Given the...

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. A student drove to the university from her home and noted that the odometer reading of hercar increased by 12.0 km. The trip took 18.0 min. (a) What was her average speed? (b) If thestraight-line distance from her home to the university is 10.3 km in a direction25.0 degrees south ofeast, what was her average velocity? (c) If she returned home by the same path 7 h 30 min after she left, what were her average speed and velocity for the entire trip
A woman sailing a boat at night is following directions to a dock. The instructions read to first sail 27.5 m in a direction66.0º north of east from her current location, and then travel 30.0 m in a direction 112º north of east (or 22.0º west ofnorth). If the woman makes a mistake and travels in the opposite direction for the second leg of the trip, where will she endup? Compare this location with the location of the dock
To find the height of an overhead power line, you throwa ball straight upward. The ball passes the line on the way upafter 0.75 s, and passes it again on the way down 1.5 s after itwas tossed. What are the height of the power line and the initialspeed of the ball?
An athlete performing a long jump leaves the ground at a 31.8 ∘∘ angle and lands 7.65 mm away. What was the takeoff speed? Express your answer using three significant figures and include the appropriate units. If this speed were increased by just 4.0%, how much longer would the jump be? Express your answer using two significant figures and include the appropriate units.
the leprechaun in the shamrock patch was named O'Malley and since he was disrupted from sitting in his patch he decided to go off and play a round of his favorite sport in where leprechaun kick a gold coin from a tee into a post 317m away. if he kicked the coin at an angleof 60 degree at a velocity of 60 m/s how high was the arch of the rainbow created by the trajectory? how long did it take to get to the pot?
A river has a steady speed of 0.500 m/s. A student swimsupstream a distance of 1.00 km and swims back to the startingpoint. If the student can swim at a speed of 1.20 m/s in stillwater, how long does the trip take? Compare this with the time thetrip would take if the water were still.
An object is shot horizontally off a cliff which is 19.95 meters high. The forward speed when it is fired is 6.321. How far forward from the firing point does it land? (Your answer should be in meters, but don't write the unit; just the nuumber.) Use the acceleration due to gravity near the earth's surface, g=10m/s^2 (Remember that the horizontal and vetical motion can be treated seperately, so you can first find the time of flight, then figure out how far foward it moves in that time)
What is the x and y components of the velocity of a ball kicked at an angle of 37⁰ from east and has a velocity of 21.7 m/s
Check Your Understanding Two motorboats named Alice and Bob are moving on a lake. Given the information about their velocity vectors in each of the following situations, Indicate whether their velocity vectors are equal or otherwise. (a) Alice moves north at 6 knots and Bob moves west at 6 knots. (b) Alice moves west at 6 knots and Bob moves west a 3 knots. (C) Alice moves northeast at 6 knots and Bob moves south at 3 knots. (d) Alice moves northeast at 6 knots and Bob moves southwest a 6 knots. (e) Alice moves northeast at 2 knots and Bob moves closer to the shore northeast at 2 knots.
In the control tower at a regional airport, an air traffic controller monitors two aircraft as their positions change with respect to the control tower. One plane is a cargo carrier Boeing 747 and the other plane is a Douglas DC-3. The Boeing is at an altitude of 2500 m, climbing at 100 above the horizontal, and moving 30 north of west. The DC-3 is at an altitude of 3000 m, climbing at 50 above the horizontal, and cruising directly west. (a) Find the position vectors of the planes relative to the control tower. (b) What is the distance between the planes at the moment the air traffic controller makes a note about their positions?
Which of the following are vector quantities and which are scalar quantities? (a) your age (b) acceleration (c) velocity (d) speed (e) mass
An athlete performing a long jump leaves the ground at a 27.8 ∘∘ angle and lands 7.63 mm away. What was the takeoff speed? answer using three significant figures and include the appropriate units. If this speed were increased by just 5.0%, how much longer would the jump be? answer using two significant figures and include the appropriate units.

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