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
Ivahew [28]
3 years ago
11

Two cars are travelling side by side down a straight road in opposite directions.Both cars are travelling at a speed of 22m/s. W

hat is their relative speed ?
Physics
1 answer:
tensa zangetsu [6.8K]3 years ago
5 0

Answer:

Their relative speed is 44 m/s

Explanation:

* <em>Lets explain what is the relative speed</em>

<u><em>Relative motion</em></u> is the change in position with time of one object

compared to another object.

If objects moving in the <em>same direction</em> towards, or away from, each

other, then relative speed is ⇒ <em>fastest speed – slowest speed</em>

If objects moving in <em>opposite directions</em> towards, or away from, each

other, then relative speed is ⇒ <em>the sum of the two speeds together</em>

* Lets solve the problem

Two cars are travelling side by side down a straight road in opposite

directions.

Both cars are travelling at a speed of 22 m/s

The two cars are travelling in opposite direction, then the relative

speed is the sum of their speed together

They are travelling at the same speed 22 m/s.

Then their relative speed = 22 + 22= 44 m/s

* <em>Their relative speed is 44 m/s</em>

You might be interested in
A skier starts from rest at the top of a hill that is inclined 10.5° with respect to the horizontal. The hillside is 200 m long,
Svetlanka [38]

Answer:

d) 289.31 m

Explanation:

Energy provided by potential energy = mgh = m x 9.8x 200 sin10.5 = 357.18m

Energy used by friction = μmgcos 10.5 x 200 = .075 x m x 9.8 x cos 10.5 x200 = 144.54 m .

Energy used by friction on plain surface = μmg x d.( dis distance covered on plain ) =.075x m x 9.8 xd = .735 m d

To equate

357.18 m -144.54 m = .735 m d

d = 289.31 m .

4 0
3 years ago
Acceleration increases over time once a force is applied to the object. Given a force of 10.0 Newtons, which mass will have the
Zolol [24]

Mass is indirectly proportional to acceleration, so, lighter the object greater would be it's acceleration...

A) 0.10 kg is lightest among them, so it's your answer

6 0
3 years ago
Read 2 more answers
A translucent material...
MaRussiya [10]
A- Scatters some light
6 0
3 years ago
A scientific theory _______.
Nesterboy [21]
B. is not a validated bu experimentation

5 0
3 years ago
Read 2 more answers
One of the harmonics of a string fixed at both ends has a frequency of 52.2 Hz and the next higher harmonic has a frequency of 6
Angelina_Jolie [31]

Solution :

Frequency may be defined as the number of observation or number of waves that is taken in per unit time. The unit of frequency is Hertz or Hz.

It is given that :

Successive harmonic frequencies, f = 52.2 Hz

and f' = 60.9 Hz

Therefore, fundamental frequency, F = f' - f

                                                           F = 60.9 - 52.2

                                                          F = 8.7 Hz

Therefore the string which is fixed at both the ends forms all the harmonics.

6 0
2 years ago
Other questions:
  • A water wheel is a example of
    6·1 answer
  • 4. You make the following measurements of an object: 42 kg and 22 m3. What would the object’s density be?
    13·1 answer
  • Surface winds on Earth are primarily caused by differences in
    12·2 answers
  • Why does pumping a soccer ball with an air pump increase the pressure inside the ball? the pump puts more gas particles inside t
    13·2 answers
  • A spaceprobe in outer space is flying with a constant speed of 1.530 km/s. The probe has a payload of 1363.0 kg and it carries 3
    9·1 answer
  • If you know how to SHiFT in sleep how do you do it
    5·1 answer
  • When learning a new exercise what is the first thing you should focus on?
    9·2 answers
  • HELP ME PLSSS What are the possible genotypes
    5·2 answers
  • I need help with an assignment a need help can someone help me SCIENCE.
    7·1 answer
  • A jet plane travels at 40.8 km at an average speed of 340 m/s calculate how long this journey took- giveyour answer to the neare
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!