Question

a cannon fires a 10.0kg cannon ball, 1.0m above the ground, and 20 degress to the horizontal, with an initial speed of 100m/s. A castle 500m away has a wall that is 24.3m high.

a) at what distance above the castle wall does the cannon ball pass?

b)calculate the average force that the cannon applied to the cannon ball. The cannon ball was in the cannon for 0.02seconds

c) what is the vertical acceleration of the cannon ball at the highest point?

d) what is the highest point above the ground that the cannon ball reaches

Answer #1

A cannon, elevated 40o above the horizontal, is fired at a
castle wall 720m away on level ground. The initial speed of the
cannonball is 100m/s.
a. What are the initial horizontal (x-direction) and vertical
(y-direction) components of the velocity?
b. How long will it take for the cannon ball to hit the
wall?
c. How high on the wall does the cannon ball hit?

1. A cannon ball is fired from a giant cannon whose length is
1.00 x 102 m. The cannon ball leaves the
barrel at a speed of 99.5 m/s:
a. What is the acceleration of the cannon ball while in the
cannon? Show all work.
The cannon ball (above) leaves the barrel at ground level at an
angle of 60.0o from the ground and travels with minimal
air resistance until impacting on the ground some distance
away.
b. Calculate the initial...

Q3: A cannonball with an initial height of 1.5 meter above the
ground is fired from a cannon at an angle of θ above the horizontal
and with initial velocity of 40 m/s. The cannonball travels a
horizontal distance of 30 meters and passes over a 14 meter high
castle wall. Find the initial firing angle θ How much time it takes
for the ball to pass over the castle wall ?. Find the velocity
(magnitude and direction ) if...

1) A ball is thrown at a 60.0° angle above the horizontal across
level ground. It is thrown from a height of 2.00 m above the ground
with a speed of 26.3 m/s and experiences no appreciable air
resistance. The time the ball remains in the air before striking
the ground is closest to
2) A rescue plane flying horizontally at 78.2 m/s spots a
survivor in the ocean 194 m directly below and releases an
emergency kit with a...

Q1:
A train accelerate from 0 m/s to 36 m/s in 12 seconds and
continues for 50 seconds at 36 m/s . The driver then brakes
strongly to stop in 26 m.
Find the constant acceleration of the train for the first 12
s
Find the total displacement traveled by train.
Find the acceleration for the braking phase.
How long does it take the train to stop from when the brakes
are first applied.
Q2:
A rocket is fired vertically...

Julie throws a ball to her friend Sarah. The ball leaves Julie's
hand a distance 1.5 meters above the ground with an initial speed
of 24 m/s at an angle 30 degrees; with respect to the horizontal.
Sarah catches the ball 1.5 meters above the ground.
What is the horizontal component of the ball’s velocity right
before Sarah catches it?
What is the vertical component of the ball’s velocity right
before Sarah catches it?
What is the time the ball...

ulie throws a ball to her friend Sarah. The ball leaves Julie's
hand a distance 1.5 meters above the ground with an initial speed
of 12 m/s at an angle 47 degrees; with respect to the horizontal.
Sarah catches the ball 1.5 meters above the ground.
1) What is the horizontal component of the ball’s velocity right
before Sarah catches it?
2)What is the vertical component of the ball’s velocity right
before Sarah catches it?
3)What is the time the...

You throw a ball torwards a wall at speed 17 m/s and at an angle
40.0° above the horizontal. The wall is 22.0 m from the release
point of the ball.
(a) How long does the ball take to reach the wall?
(b) How far above the release point does the ball hit the
wall?
(c) What are the horizontal and
vertical components of its velocity as it hits the
wall?
(d) When it hits, has it passed the highest...

Julie throws a ball to her friend Sarah. The ball leaves Julie's
hand a distance 1.5 meters above the ground with an initial speed
of 16 m/s at an angle 32 degrees; with respect to the horizontal.
Sarah catches the ball 1.5 meters above the ground.
a) What is the vertical component of the ball’s velocity right
before Sarah catches it?
b) After catching the ball, Sarah throws it back to Julie.
However, Sarah throws it too hard so it...

Astronaut Mary is standing at the edge of a vertical cliff a
distance h above horizontal ground on a distant planet. She
performs an experiment where she throws a magnetized steel ball
horizontally off the cliff with initial speed v. After leaving
Mary’s hand, the ball undergoes a horizontal displacement D before
landing on the ground. Only gravity acts on the ball during this
flight. Mary repeats this experiment. However, during this 2nd
experiment, a strong magnet is placed nearby...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 2 minutes ago

asked 3 minutes ago

asked 14 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago