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23 Nov 2019

You are standing on top of building 135 m tall. You throw ballupward with velocity of 22.0 m/s. At exact moment a friend throws asecond ball upward from ground with velocity of 46.0 m/s these 2balls then collide at some later time.
a. How long after these 2 balls are released will theycollide?
b. Where will these two balls be when they collide?
c. What will be the velocity of each ball just as theycollide?
d. What will be relative velocity between these two balls at themoment they collide?

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Hubert Koch
Hubert KochLv2
3 Aug 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Ball A is dropped from the top of a building of height H at thesame instant ball B is thrown vertically upward from the ground.First consider the situation where the balls are moving in oppositedirections when the collide. If the speed of ball A is m times thespeed of ball B when they collide, find the height at which theycollide in terms of H and m. Take x = 0 at the ground, positiveupward.

1.1 With two equations, describe the conditions at the collision(position and velocities of the balls).

1.2 Write the expressions for position and velocity of the balls asa function of time.

1.3 Solve the above equations to find the height at which the ballscollide. Your answer should be expressed as a fraction of theheight of the building H and it should depend on the speed ratiom.

1.4 Now suppose that m can be negative (i.e. balls A and B aremoving in the same direction when they collide). Use the formuladerived above to graph the height of the collision (again expressedas a fraction of the building height H) as a function of m for -5< m < 5. Are there values of m for which the answer isunphysical?

Is there anybody could answer these two questions?

1.n object moves at a constant velocity of 5.5 m/s to
the southwest for an interval of 20 s. Halfway through
this interval, what is the magnitude of its instantaneous
velocity?

1. 11 m/s
2. It can be any value from 0 to 22 m/s.
3. More information is needed.
4. 5.5 m/s

2.A student throws a heavy red ball horizontally from
a balcony of a tall building with an initial speed v0.
At the same time, a second student drops a lighter blue
ball from the same balcony. Neglecting air resistance
, which statement is true?

1. The balls reach the ground at the same instant.
2. The blue ball reaches the ground first.
3. The red ball reaches the ground first.
4. Both balls hit the ground with the same speed.

thanks a lot in advance:)

1. A physics book dropped from the top of the school takes 3.00seconds to hit the ground. How high is the school and how fast wasthe book traveling when it hit the ground?

2. A ball rolls down a hill with constant a acceleration of 3 m/s2(squared). If it starts from rest, what is its speed at the end of4 seconds an how far did it move?

3. If I jump out of an airplane, and i am in the fictitious worldof the physics book (no air), how long will it take me to reach aspeed of 131.7 miles per hour and how far will I have traveledduring that time?

4. A tennis ball is thrown vertically upward it returns to thestarting point 6.0 seconds later. How high did the ball go?

5. Ryan's parents are out of town, so, of course, he throws aparty. During the party, a priceless vase was knocked from a shelf2.5 meters high and broke into several million pieces. There is notenough super glue in the world to put the vase back together. Howlong does it take the vase to hit the floor, how many miles perhour was it traveling when it hit the floor, and who does he blamefor this?

6. Jenelle throws Matt's calculator vertically downward with aninitial velocity of -4.9 m/s from the top of Enger Tower (19.6meters high). Determine:
a. the velocity of the calculator just as it hits the ground--
b. the time the calculator is in the air ---
Don't know the formulas or do I understand these problems and haveno book as a point of reference. Can you help me?

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