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
guajiro [1.7K]
2 years ago
15

Two rocks, a and b, are thrown horizontally from the top of a cliff. rock a has an initial speed of 10 meters per second and roc

k b has an initial speed of 20 meters per second. how would you describe the time it takes for the rocks to reach the ground and the horizontal distance they travel? both rocks hit the ground at the same time and at the same distance from the base of the cliff. both rocks hit the ground at the same time, but rock b lands twice as far as rock a from the base of the cliff. both rocks hit the ground at the same time, but rock a lands twice as far as rock b from the base of the cliff. rock b hits the ground before rock a, and rock b lands twice as far as rock a from the base of the cliff.
Physics
1 answer:
Arte-miy333 [17]2 years ago
5 0

Both rocks hit the ground at the same time and at the same distance from the base of the cliff. Option A is correct.

<h3>What is speed ?</h3>

Speed is defined as the rate of change of the distance or the height attained. it is a time-based quantity. it is denoted by u for the initial speed while u for the final speed. its SI unit is m/sec.

If the  resistance is ignored, things falling near the Earth's surface have the same estimated acceleration due to gravity of 9.8 meters per second.

As a result, the objects' acceleration is the same, and their velocity is growing at a consistent pace.

So that both rocks hit the ground at the same time and at the same distance from the base of the cliff.

Hence, option A is correct.

To learn more about the sped, refer to the link;

brainly.com/question/7359669

#SPJ1

You might be interested in
A ball thrown straight up into the air is found to be moving at 6.79 m/s after falling 1.87 m below its release point. Find the
MaRussiya [10]

Answer:

3.07 m/s

Explanation:

We know that from kinematics equation

v^{2}=u^{2}+2as and here, a=g where v is the final velocity, u is the initial velocity, a is acceleration, s is the distance moved, g is acceleration due to gravity

Making u the subject then

u=\sqrt {v^{2}-2gs}

Substituting v for 6.79 m/s, s for 1.87 m and g as 9.81 m/s2 then

u=\sqrt {6.79^{2}-(2\times 9.81\times 1.87)}=3.068338313 m/s\approx 3.07 m/s

5 0
4 years ago
In a model of the hydrogen atom, the electron travels in circular orbits around the proton. What is the electric potential, in v
Talja [164]

Answer:

6.93 volts

Explanation:

q = magnitude of charge on proton = 1.6 x 10⁻¹⁹ C

r = radius of the orbit = 2.08 x 10⁻¹⁰ m

V = Electric potential due to proton on electron

Electric potential due to proton on electron is given as

V = \frac{kq}{r}

Inserting the values

V = \frac{(9\times 10^{9})(1.6\times 10^{-19})}{2.08\times 10^{-10}}

V = 6.93 volts

7 0
4 years ago
A(an) ________ complex refers to the feeling that one lacks worth and doesn't measure up to the standards of others or of societ
saw5 [17]

Answer:

Explanation:

Inferiority Complex

3 0
3 years ago
Read 2 more answers
If an object is in free fall it will experience air which generates a drag force
Snowcat [4.5K]
Is this a trure/false? if it is then it is true
8 0
3 years ago
Read 2 more answers
2. A student becomes so excited by the whole idea of black holes that he decides to jump into one. It has a mass 10 times the ma
LiRa [457]

Answer:

*Disclaimer you can't actually do that, or at least not yet because the nearest black hole is at least 1,000 light years away. But if we could...

His journy would be pretty fast and horrific. For him, he would slowly be streched apart or spegetified into a string of atoms as he nears the event horizoin. But for an outside observer he would apear to go slower and slower and would never actualy reach the event horizion. This is becuase of einstines general relativity, massive objects slow time down. He would also apear to become red as the lights wavelength is streched out due to the entense gravity of the black hole.

8 0
3 years ago
Other questions:
  • Currents that occur in deep water are:
    9·1 answer
  • Can you use newton in a sentence
    11·1 answer
  • Why are satellites placed into orbit at least 150 km above Earth’s surface?
    13·2 answers
  • A pendulum swings in an arc in which each successive swing is 40% as long as the previous swing. if the first swing covers an ar
    11·1 answer
  • An inclined plane of effective length 4.5m is used to raise a load of 500N through a height of 1.5m .If the list is raise by for
    10·1 answer
  • Please answer and thanks
    8·1 answer
  • HELP PLZ IM BEING TIMED!!
    14·2 answers
  • What has a larger capacitance, an aluminum sphere with a 10 cm diameter or one with a 100 cm diameter? Question 16 options: 10 c
    9·1 answer
  • Sequence the events of a lunar eclipse in the correct order​
    15·1 answer
  • You want to double the radius of a rotating solid sphere while keeping its kinetic energy constant. (The mass does not change.)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!