Question

A girl throws a ball straight up into the air with the initial
velocity v0 = 18.0 m/s. At a certain point, the ball falls back
into the girl's hands.

a) What is the highest height the ball will reach?

b) How long is the ball in the open air?

c) What is the velocity of the ball just before it hits again?

Answer #1

A person standing on a 20m tall building throws a ball straight
up. The ball is observed to go 5m above the point where she let it
go. It then falls down to the ground.
1. How fast was the ball thrown?
2.How long did it take for the ball to hit the ground?
3. how fast is the ball going just before it hits the
ground?

A baseball player throws a ball into the air with an initial
velocity of 22 m/s [up].
a) How high up does the ball go?
b) If she catches the ball from the same height that she threw
it, how long was the ball in the air?

Rodney throws a ball upward into the air with an initial
velocity of 18 m/s. How high does it go and how long the ball is in
the air before it comes back to his hand?

A man has two rocks and throws the first one straight up ten
meters high. At the instant the first rock reaches it's highest
point, the man throws the second rock upward with the same in
initial speed as the first. (a) What was the initial velocity of
the first ball? (b) How long will it take the second ball to pass
the first? (c) At what height will the two balls pass one another?
(d) At that time, which...

A person throws a ball at an initial angle θ0 = 45° from the
horizontal with an initial speed of v0
= 20 m⋅s-1. The point of release of the ball is at a height d =
2 m above the ground. You may neglect air resistance.
a) How long does it take the ball to reach the highest point of its
trajectory?
b) What was the maximum vertical displacement of the ball?
c) What was the distance of the...

Nicholas throws a ball with an initial speed of 10.00 m/s at
an angle of 58° above the horizontal. The ball leaves her hand 0.88
m above the ground and experience negligible air resistance.
(a)How far from where the child is standing does the ball hit
the ground?
(b)How long is the ball in flight before it hits the
ground?
(c)What is the magnitude of the ball's velocity just before
it hits the ground?
(d)At what angle below the horizontal...

A
person is standing on top of a 57-m cliff. He throws a ball
straight up right at the very edge of the cliff so that when it
falls it lands at the base of the cliff. The speed of the ball as
it leaves his hand is 22.5 m/s.
A. What is the ball's maximum height?
B. How long is the ball in the air?
C. At what heights (there are two) is the speed of the ball
10.0...

I throw a ball straight upward at an initial velocity of +40
m/s. Assuming g is -10 m/s2, (a) how long would it take for the
ball to reach its maximum height before falling back down? (b) what
will its final speed be right before reaching your hand again at
the same height as where you threw it? (c) how does the
acceleration of the ball change as it reaches the top of its path
going 0 m/s?

A ball is thrown from a level of 6ft straight up into the air
with an initial velocity of 12 ft/sec. The ball decelerates at a
constant rate of 16 ft/sec^2. What is the highest level (in feet)
the ball will reach?

A man throws a ball straight upward with speed 30 m/s from the
top of a building that is 75 m high. Ignore air resistance and
choose the vertical y-axis to be positive downward with
origin at the point of throw (top of the building).
Represent the initial velocity and the acceleration vectors in
the reference y-axis above.
Find the maximum height the ball reaches with respect to the
ground.
How long does it take the ball to reach the...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 4 minutes ago

asked 4 minutes ago

asked 16 minutes ago

asked 21 minutes ago

asked 24 minutes ago

asked 55 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago