A student throws a set of keys vertically upward to her sister in a window 6 m above. The keys are caught 1.5 s later by the sister's outstretched hand. With what initial velocity were the keys thrown? * D + (11.5 m/s)j - 11.5 m/s O - (11.5 cm/s)j +11.5 cm/s O None of the above

A student throws a set of keys vertically upward to her sister in a window 6 m above. The keys are caught 1.5 s later by the sister's outstretched hand. With what initial velocity were the keys thrown? * D + (11.5 m/s)j - 11.5 m/s O - (11.5 cm/s)j +11.5 cm/s O None of the above

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 60AP: A student throws a set of keys vertically upward to his fraternity brother, who is in a window a...

See similar textbooks

Similar questions

6. If an object is dropped from the top of a ledge, what is the object's Initial velocity? O 9.81 m/s O -1 m/s O-9.81 m/s OOm/s
A ball was dropped from the top of a building. If the ball was from a height of 339 meters from the ground, find the speed of the ball 3 seconds after it was dropped. = 0 m/s y t = 3.00 s Select one: a. 3325.5900 m/s b. 0.0289 m/s c. 348.8100 m/s d. 29.4300 m/s
A ball was dropped from the top of a building. If the ball was from a height of 134 meters from the ground, find the speed of the ball 3 seconds after it was dropped. Vo = 0 m/s L--1= 3.00 s Select one: Oa. 143.8100 m/s Ob. 29.4300 m/s Oc. 1314.5400 m/s Od. 0.0732 m/s
Arthur and Betty start walking toward each other when they are 100. m apart. Arthur has a speed of 3.0 m/s and Betty has a speed of 2.0 m/s. Their dog, Spot, starts from Arthur's side at the same time and runs back and forth between them. By the time Arthur and Betty meet, what is Spot's displacement?
None
sics 101 SICS 0780938042 Aljall saal R1) An object has a position given by r = [2+3t)i+ [3- 2t21j. What is the peed of the object at time t = 1s ? A) 4 m/s B) 10 m/s C) 5 m/s D) 8 m/s R2) A projectile is fired from ground with an initial velocity v = 30i + Oj m/s and returns to the ground. Find the horizontal range of the rojectile. A) 60 m B) 30 m C) 120 m D) 40 m 23) At t = 0, a particle leaves the origin with a velocity of 10 m/s in the ositive y direction and moves in the xy plane with a constant acceleration f (2i - 4j) m/s2. At the instant the x coordinate of the particle is 25 m, Vhat is the speed of the particle ? C) 10 m/s D) 16 m/s ) 14 m/s B) 12 m/s 24) A boy on the edge of a building 20m high throws a stone horizontally rith a speed of 25m/s. At what horizontal distance from the building it trikes the ground ? C) 60 m D) 50 m -) 25 m B) 35 m 5) A car moves with constant speed around the circle as shown. When it at point A its coordinates are x = 0, y = 3m and its velocity…
A falling object has a speed of 10.0 m/s. After traveling 10.0 m, what is the speed of the object? O a. 17.20 m/s O b.20.0 m/s O c. 14.07 m/s O d. 10.0 m/s
Please help, do not reject! Thanks!
All changes saved O 4. Robert is standing on a bridge that spans a canyon. He drops a pebble from the bridge, and records how long the pebble takes to reach the water below, If the pebble takes 5.49 seconds to reach the water, what is the helght of the bridge? O 91.1 m O 26.9 m O 296 m O 148 m PREVIOUS 4 of 10 NEXT REVIEW SAVE & EXIT -> Ce
14. A dog travels from point A to point B in 4.0s. If the dog was displaced 12 m (E) , what was its velocity? a) 48 m/s (E) b) 3 m/s (E) c) 3 m/s d) 48 m/s
2. A group of students conducted a projectile experiment in which they fired a projectile at an unknown angle with varying speed. Students took the following data for projectile range and speed. Determine: a. What kind of graph comes out if initial velocity vs. range is plotted? R(m) Volm/s) 0.2 1.71 0.4 2.42 0.6 2.97 0.8 3.43 3.83 1.2 4.2 1.4 4.53 1.6 4.84 1.8 5.14 2 5.42 b. What is the linearization method for this graph? c. Make the linearized graph and determine its slope with its units. d. Determine the initial angle at which the projectile was launched.
Needs Complete typed solution with 100 % accuracy.