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
mars1129 [50]
3 years ago
14

a model rocket flies horizontally off the edge of a cliff at a velocity of 40.0m/s. if the canyon below is 110.0m deep, how far

from the edge of the cliff does the model rocket land?
Physics
1 answer:
Over [174]3 years ago
5 0

Answer:

189.6 m

Explanation:

First of all, we study the vertical motion of the rocket in order to find the time it takes for it to land. The suvat equation for the vertical motion is

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

where, taking downward as positive direction:

s = 110.0 m is the vertical displacement

u = 0 is the initial vertical velocity

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

t is the time of flight

Solving for t,

t=\sqrt{\frac{2s}{g}}=\sqrt{\frac{2(110)}{9.8}}=4.74 s

Now we can just analyze the horizontal motion, which is a uniform motion with constant velocity, which is equal to

v_x = 40.0 m/s

So the distance travelled horizontall after a time t is

d=v_x t

So, when the rocket lands (t = 4.74 s), the horizontal distance travelled is

d=(40.0)(4.74)=189.6 m

Therefore, the rocket lands 189.6 m far from the edge of the cliff.

You might be interested in
The relative highness or lowness of a sound is called ______. Multiple Choice pitch timbre dynamics octave
Assoli18 [71]
Pitch is the answer…….
8 0
2 years ago
A point P1 is located by the vector A = (3.74)î + (1.64)ĵ and a point P2 is located by the vector B = (1.60)î + (3.66)ĵ. The vec
seropon [69]

Answer:

\vec{C} = ( \ - 2.14 \ , \ 2.02 \ )

Explanation:

The vector that point from point P1 to point P2 its found simply by taking the vector at which point P2 its located and subtracting the vector at which point P1 its located:

\vec{C} = \vec{B} - \vec{A}

So:

\vec{C} = ( \ 1.60 \ , \ 3.66 \ ) - ( \ 3.74 \ , \ 1.64 \ )

\vec{C} = ( \ 1.60 \ - \ 3.74 \ , \ 3.66 \ - \ 1.64 \ )

\vec{C} = ( \ - 2.14 \ , \ 2.02 \ )

4 0
3 years ago
A battery charger is connected to a dead battery and delivers a current of 8.9 A for 4.7 hours, keeping the voltage across the b
adell [148]

Answer:

1807.56 kJ

Explanation:

Parameters given:

Current, I = 8.9A

Time, t = 4.7hrs = 4.7 * 3600 = 16920 secs

Voltage, V = 12V

Electrical energy is given as:

E = I*V*t

Where I = Current

V = Voltage/Potential differenxe

t = time in seconds.

E = 8.9 * 12 * 16920

E = 1807056 J = 1807.056 kJ

3 0
3 years ago
Read 2 more answers
Planets A and B have the same size, mass, and direction of travel, but planet A is traveling through space at half the speed of
lord [1]

Planet A is heavier than Planet B

Because Planet A is heavier than Planet B, Planet B will be easier to be moved by gravity causing it to move faster than Planet A.

Hope This Helped : )

6 0
3 years ago
Which of the following is a transformer used for?
mamaluj [8]

A transformer is used to increase or decrease a voltage.  BUT ... it has to be an AC voltage, or the transformer doesn't work.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A resistor with an unknown resistance is connected in parallel to a 13 ? resistor. when both resistors are connected in parallel
    14·1 answer
  • Scientific notation: Convert 7.1 x 10-3 to decimal notation.​
    10·1 answer
  • For a medium to transmit a wave, the medium must _____.
    8·1 answer
  • As your hand moves back and forth to generate longitudinal pulses in a spiral spring, your hand completes 3.19 back-and-forth cy
    15·1 answer
  • An oil drop with a charge of 2x10-17C is suspended between 2 parallel plates 5cm apart. The
    12·1 answer
  • An AC generator consists of 6 turns of wire. Each turn has an area of 0.040 m2. The loop rotates in a uniform field (B = 0.20 T)
    15·1 answer
  • How was electric force used to generate lights
    11·1 answer
  • 3.
    8·1 answer
  • The bending of waves such as sound waves, light waves, and waves in water, around obstacles or the edges of openings is called.
    6·1 answer
  • Explain the mechanism by which an open fracture could result in shock.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!