Question

A ball is thrown horizontally from the top of a 57.5-m building
and lands 122.3 m from the base of the building. Ignore air
resistance. (Assume the ball is thrown in the +*x* direction
and upward to be in the +*y* direction.)

(a)

How long (in s) is the ball in the air?

(b)

What must have been the initial horizontal component of the velocity (in m/s)? (Indicate the direction with the sign of your answer.)

(c)

What is the vertical component of the velocity (in m/s) just before the ball hits the ground? (Indicate the direction with the sign of your answer.)

(d)

What is the velocity (in m/s) (including both the horizontal and vertical components) of the ball just before it hits the ground?

magnitude ___ m/s direction ___ ° counterclockwise from the
+*x*-axis

Answer #1

Ans d Magnitude is 49.00 m/s and angle 136.69 counter clockwise from X axis

A ball is thrown horizontally from the top of a 53.0-m building
and lands 119.3 m from the base of the building. Ignore air
resistance. (Assume the ball is thrown in the +x direction
and upward to be in the +y direction.)
a) How long (in s) is the ball in the air? in s
b) What must have been the initial horizontal component of the
velocity (in m/s)? (Indicate the direction with the sign of your
answer.) in m/s...

A ball is thrown horizontally from the top of a 68 m building
and lands 110 m from the base of the building. Ignore air
resistance.
a. What is the vertical component of the velocity just before
the ball hits the ground?
c. What is the angle of the ball just before it hits the ground
( in degrees below x-axsis)?

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 ground? In
meters per second

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
ground?
Just give the magnitude in meters/second here.

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 horizontally from the top of a building hits
the ground 0.25 s later, Ignore air resistance. If it had been
thrown with twice the speed in the same direction, it would have
hit the ground in:
A) 0.40 s
B) 0.50 s
C) 1.00 s
D) 0.25 s

2. (15pts, 5pts
each) A ball is thrown from the top of a building that is
H = 40 m height. It has an initial velocity
v0 that is at angle
of = 53° below the horizontal direction, as shown in the
below Figure. The ball hits the ground t = 2.0 s after being
thrown. You may neglect air resistance.
a) Find the magnitude of the initial velocity
v0 of the ball.
b) Find the velocity of the ball just...

A projectile is shot horizontally at 25 m/s from the roof of a
building 90 m tall. Use g = 10 m/s2. Choose positive vertical
direction upward. •
How long does it take the projectile to reach the ground below
(round to the nearest integer) .
• What is the horizontal range of this projectile, i.e. how far
from the base of the building does the projectile land (round to
the nearest integer) .
• What is the horizontal component...

A seagull flying horizontally over the ocean at a constant speed
of 3.15 m/s carries a small fish in its mouth. It accidentally lets
go of the fish, and 1.85 s after letting go the fish lands in the
ocean.
(a) Just before reaching the ocean, what is the horizontal
component of the fish's velocity? Ignore air resistance. Assume the
bird is initially traveling in the positive x direction.
(Indicate the direction with the sign of your answer.)
__________ m/s...

A
ball thrown horizontally from the roof of a building 7.50m tall.
the ball lands at 9.75 m away from the base. 1) how much time does
it take for the ball to land? 2) how much is the initial velocity
of the ball?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 19 minutes ago

asked 26 minutes ago

asked 27 minutes ago

asked 29 minutes ago

asked 39 minutes ago

asked 40 minutes ago

asked 50 minutes ago

asked 51 minutes ago

asked 56 minutes ago

asked 59 minutes ago

asked 2 hours ago

asked 2 hours ago