Question

At t = 0, Ball 1 is dropped from the top of a 19 mm-high building. At the same instant Ball 2 is thrown straight up from the base of the building with an initial velocity of +12 m/sm/s. Assume that Ball 1 starts from rest and that air friction can be ignored. At what height will the two balls pass each other?

What is the velocity of each ball at the moment they are at the same height?

Express your answers in meters per second separated by a comma.

Answer #1

here - sign arises as we take initial velocity of ball 2 in upwards.

A ball is dropped from rest from the top of a building with
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initial speed of your throw is 19 m/s, then the two balls collide
at a height above the ground equal to:
a) 4.50 m b) 7.61 m c) 12.2 m d) 16.1 m e) 2.15 m

a
ball is dropped from the top of the building of a height of 80m. at
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from the bottom of buildings..
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b) what is their velocities when they meet?

A) A ball is released from the top of a 67.0 m high building. At
the same instant a second ball is shot straight up from the ground
with an initial speed of 20.0 m/s , directly below the point where
the first ball was dropped. Ignore air drag and calculate the
height above the ground where the balls collide. the velocity
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B) Three vectors A, B, and C each...

An iron cannonball and a bowling ball are dropped at the same
time from the top of a building. At the instant before the balls
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A.velocity.
B.aceleration.
C.kinetic energy.
D.All of these are the same for the two balls.

A ball is thrown straight up from the edge of the roof of a
building. A second ball is dropped from the roof a time of 1.17 s
later. You may ignore air resistance
A.
If the height of the building is 20.3 m, what must the initial
speed be of the first ball if both are to hit the ground at the
same time?
Express your answer in meters per second.
B.
Consider the same situation, but now let...

A ball is thrown horizontally from the top of a 70.0-m building
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A ball is thrown upward from ground level at 25 m/s. At the same
instant, a second ball is dropped from rest from a building 15 m
high. How high above the ground will the two balls be when they are
at the same height? Please break it out to where it makes sense.
Thank you!

2) A ball is dropped from rest at the top of a high cliff. It
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a) the height of the cliff, b) the velocity of the ball hitting the
ground below, c) the time it takes for the ball to fall half of the
cliff's height, and d) the velocity at this halfway point.
(Remember acceleration due to gravity is -9.800 m/s^2).

A ball is thrown horizontally from the top of a 70.0-m building
and lands 90.0 m from the base of the building. Ignore air
resistance. What is the velocity just before it hits the
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Just give the magnitude in meters/second here.

A
ball is thrown from the roof of a building. The initial velocity
vector is at an angle of 53.0° above the horizontal. It is at
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a.) What is the vertical velocity (vector) at t=1.04
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b.) What is the initial vertical velocity (vector)?
c) What is the inital...

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