1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sedbober [7]
3 years ago
15

A cat is shot horizontally out of a cannon that is on top of a 125 meter tall cliff. If the cat lands 286 m away from the base o

f the cliff, how fast did the cat come out of the cannon
Physics
1 answer:
Elden [556K]3 years ago
3 0

The initial velocity of the cat is 56.6 m/s

Explanation:

The motion of the cat is a projectile motion, consisting of:

- a uniform horizontal motion with constant velocity

- a vertical accelerated motion with constant acceleration (free fall)

We start by analyzing the vertical motion, to find the time it takes for the cat to reach the ground. We use the following suvat equation:

s=ut+\frac{1}{2}at^2

where we have (choosing downard as positive direction)

s = 125 m is the vertical displacement of the cat

u = 0 is the initial vertical velocity

t is the time taken to reach the ground

a=g=9.8 m/s^2 is the acceleration of gravity

Solving for t, we find

t=\sqrt{\frac{2s}{a}}=\sqrt{\frac{2(125)}{9.8}}=5.05 s

Now we can analzye the horizontal motion. Since the motion is uniform and the horizontal velocity is constant, it is given by

v_x =\frac{d}{t}

where

d = 286 m is the horizontal distance travelled

t = 5.05 s is the time taken

Solving the equation,

v_x = \frac{286}{5.05}=56.6 m/s

Learn more about projectile motion:

brainly.com/question/8751410

#LearnwithBrainly

You might be interested in
How far does a car travel in 90 seconds if it’s traveling 55 m/s? Show equation
podryga [215]

You just said the car is traveling at the speed of 55 m/s.  If I understand this  correctly, that means the car will cover:

55 meters in the first second,

55 meters in the 2nd second,

55 meters in the 3rd second,

55 meters in the 4th second,

55 meters in the 5th second,

.

.

.

55 meters in the 87th second,

55 meters in the 88th second,

55 meters in the 89th second, and

55 meters in the 90th second.

That's 55 meters 90 times.  If you just move these words around a little bit, it says "90 times 55 meters" . . . a pretty simple arithmetic problem.

The equation is . . . <em>Distance = (55 m/s) times (time, in seconds)</em> .

I get <em>4,953 meters</em>.  You should check me on this.

8 0
3 years ago
Your mother asks you to carry a load of wood to the fireplace and lower it to the hearth. In doing this you have used your arms
Evgesh-ka [11]

Answer: The correct answer is the weight of the wood.

Explanation:

Hope this helps

8 0
2 years ago
Read 2 more answers
Describe three events that you cannot explain.<br> About energy and matter
ZanzabumX [31]

Answer:

A teacher giving homework on fridays

A teacher giving tests on fridays

A teacher holding you back after class on fridays

Explanation:

because i luv friday

5 0
3 years ago
Calculate the acceleration due to gravity on the moon. the radius of the moon is about 1.74 x 106 m and its mass is 7.35 x 1022
emmainna [20.7K]
Given: Radius of the Moon Rm = 1.74 x 10⁶ m

           Mass of the Moon Mm = 7.35 X 10²² Kg

           Universal Gravitational constant G = 6.67 X 10⁻¹¹ N.m²/Kg²

Required: acceleration due to gravity g = ?



Formula:  g = GMm/Re²

                 g = (6.67 x 10⁻¹¹ N.m²/Kg²)(7.35 x 10²² Kg/(1.74 x 10⁶ m)²

                 g = 4.90 x 10¹² N.m²/Kg/3.0 x 10¹² m²

                 g = 1.63 m/s²




4 0
3 years ago
You want to estimate the diameter of a very small circular pinhole that you’ve made in a piece of aluminum foil. To do so, you s
mrs_skeptik [129]

Answer:C

Explanation:

Given

Wavelength of light \lambda =632\ nm

Screen is placed at a distance of D=3.5\ m

width of central maximum w=15\ mm

We know that width of central maximum is given by

w=\frac{2.44\lambda D}{d}

where d=diameter of hole

d=\frac{2.44\lambda D}{w}

d=\frac{2.44\times 632\times 10^{-9}\times 3.5}{15\times 10^{-3}}

d=0.359\ mm

d=0.36\ mm

4 0
3 years ago
Other questions:
  • How fast does a cats hair grow back?
    14·2 answers
  • A 60-W light bulb radiates electromagnetic waves uniformly in all directions. At a distance of 1.0 m from the bulb, the light in
    11·1 answer
  • A skateboarder is skating back and forth on the halfpipe as seen below. As he skates his energy transforms from potential energy
    10·1 answer
  • What does it mean when there is a curved line going upwards on a graph?<br><br>science 8th grade :)
    10·1 answer
  • Scientists often work on projects for a long time and fail to see sources of error in their research. Which process allows an ou
    10·1 answer
  • Release an electron initially at rest in the presence of an electric field. The electron tends to go to the region of 1. same el
    13·1 answer
  • The center of a moon of mass m is a distance D from the center of a planet of mass M. At some distance x from the center of the
    15·1 answer
  • The electromagnetic waves with the most energy have the greatest
    8·2 answers
  • 8. A vacuum tube can be used to
    15·1 answer
  • two forces act concurrently on an object on a horizontal frictionless surface. their resultatn force has the largest magnitude w
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!