Question

a
ball is dropped from the top of the building of a height of 80m. at
same instant, another ball is thrown upwards witb a speed of 50m/s
from the bottom of buildings..

a) at what time will both meet?

b) what is their velocities when they meet?

Answer #1

Thanks you.

A ball is dropped from rest from the top of a building with
height 50 meters. At the same instant, you throw a ball upward from
ground level carefully aimed to hit the falling ball. If the
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

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...

Ball 1 is thrown vertically upwards at 8 m/s from a height of 30
meters from the side a building. A second ball is thrown upwards
from the ground (height of 0 m) 0.39 seconds after the ball 1 is
thrown upwards. With what speed, in m/s, does the second ball need
to be thrown such that it collides with ball 1 when ball 1 is 8
meters above the ground?

A soccer ball is kicked from the top of one building with a
height of H1 = 30.3 m to another building with a height of H2 =
13.4 m. The ball is kicked with a speed of v0 = 15.1 m/s at an
angle of θ = 80.0° with respect to the horizontal. The mass of a
size 5 soccer ball is m = 450 g. What is the speed of the soccer
ball, when it lands on the...

rock thrown upward with an initial speed of 24.5 m/s
from the top of a 50m tower.
a. what's the rockets velocity the instant it hits the
ground?
b. how long is it in the air?
c. what's the max height above the building the ball
reaches?

A ball is thrown horizontally with an initial speed of 50m/s
from the top of a building 60m tall
a) How far away from the building will the ball hit the
ground?
b) What is the horizontal component of its velocity when it hits
the ground?
c) Find the magnitude and direction of the velocity when it hits
the ground?

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...

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
hit the sidewalk, the heavier cannonball has a greater?
A.velocity.
B.aceleration.
C.kinetic energy.
D.All of these are the same for the two balls.

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
(magnitude and direction) of each ball just before the
collision.
B) Three vectors A, B, and C each...

Bob drops a ball from rest out the window of a building. At the
very same instant Phyllis releases a ball upward with an initial
speed of 11.0 m/s from a point 20.0 m directly below Bob.
(a) At what height above Phyllis do the balls collide?
(b) Is the ball thrown by Phyllis moving upward or downward when
the collision occurs? Explain

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 25 minutes ago

asked 30 minutes ago

asked 30 minutes ago

asked 35 minutes ago

asked 35 minutes ago

asked 37 minutes ago

asked 45 minutes ago

asked 45 minutes ago

asked 47 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago