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
harkovskaia [24]
2 years ago
5

two soccer players, mary and jane, begin running from nearly the same point at the same time. mary runs in an easterly direction

at 4.43 m/s, while jane takes off in a direction 60.2o north of east at 5.07 m/s. how long is it before they are 24.7 m apart? what is the velocity of jane relative to mary? enter first the x-component and then the y-component. how far apart are they after 4.08 s?
Physics
1 answer:
goblinko [34]2 years ago
5 0

The time taken before the two soccer players are 24.7 m apart is 3 seconds.

Velocity of Jane relative to marry is 4.4 m/s in y-direction and 6.95 m/s in x direction.

The distance between Jane and Mary after 4.08 seconds is 33.58 m.

<h3>Resultant velocity of Mary and Jane</h3>

Vertical component of the velocity;

Jane: Vy1 = V sinθ

Vy1 = 5.07 m/s  x  sin(60.2)

Vy1 = 4.4 m/s

Horizontal components of the velocity;

Jane: Vx1 = V cos θ

Vx1 = 5.07 m/s  x  cos60.2

Vx1 = 2.52 m/s

mary: Vx2 = 4.43 m/s

total horizontal components of the velocity = 4.43 m/s + 2.52 m/s = 6.95 m/s

<h3>Resultant velocity</h3>

V = √Vy² + Vx²

V = √(4.4² + 6.95²)

V = 8.23 m/s

<h3>Time taken before they are 24.7 m apart</h3>

t = 24.7 m / 8.23 m/s

t = 3 seconds

Velocity of Jane relative to marry is 4.4 m/s in y-direction and 6.95 m/s in x direction.

<h3>Distance between Jane and Mary after 4.08 seconds</h3>

d = vt

d = 8.23 m/s  x 4.08 s

d = 33.58 m

Learn more about relative velocity here: brainly.com/question/17228388

#SPJ1

You might be interested in
A spacecraft travels at 1.5 X 108 m/s relative to Earth. A process onboard the
kvasek [131]

Answer:

73.6 minutes

Explanation:

relative time = time interval / √(1 - observer velocity² / speed of light²)

we have relative time. we want time interval.

rearrange

time interval = relative time x √(1 - observer velocity² / speed of light²)

convert 85 mins into seconds

85 x 60 = 5100

1.5 x 10⁸ as a number is 150000000

for c = 299 792 458

time interval = 5100 x √(1 - 150 000 000² / 299 792 458²)

for c = 3 x 10⁸

time interval = 5100 x √(1 - 150 000 000² / 300 000 000²)

time interval = 5100 x 0.866

time interval = 4415.71

divide by 60 for back into minutes

time = 73.6 minutes

4 0
2 years ago
A 2000 kg car experiences a constant braking force
Marat540 [252]
In that case, there are three possible scenarios:

-- If the braking force is less than the force delivered by the engine,
then the car will continue to accelerate, and the brakes will eventually
overheat and erupt in flame.

-- If the braking force is exactly equal to the force delivered by the engine,
then the car will continue moving at a constant speed, and the brakes will
eventually overheat and erupt in flame.

-- If the braking force is greater than the force delivered by the engine,
then the car will slow down and eventually stop.  If it stops soon enough,
then the absorption of kinetic energy by the brakes will end before the
brakes overheat and erupt in flame.  Even if the engine is still delivering
force, the brakes can be kept locked in order to keep the car stopped ...
They do not absorb and dissipate any energy when the car is motionless.
4 0
3 years ago
A bug crawls 3.0 mm east, 4.0mm north, and then 5.0 mm at 45 north of east. Draw a diagram showing its displacements and determi
KatRina [158]

Answer:

Explanation is given

Mark Me as Branliest

3 0
3 years ago
How are gravity and electromagnetic force similar and different?
oksano4ka [1.4K]

Answer:

The biggest difference is that gravity is an attractive force while electromagnetism is both an attractive and repelling force. Gravity happens between two objects depending on their masses, while electromagnetism is dependent on the objects' electric charges and the distance between them.

Explanation:

7 0
3 years ago
The members of the track team will be able to run faster after they drink the new energy drink.” Explain why this statement is a
Mars2501 [29]
Because your taking a educated guess on what will happened if the track member drinks the energy drink
3 0
3 years ago
Other questions:
  • CAN YOU PLEASE HELP ME!!!!! I WILL MARK BRAINLIST
    10·2 answers
  • A forklift raises a box weighing 475N from the floor to a height of 18m in 12 seconds. What power is produced by the forklift mo
    9·1 answer
  • Finish this sentence to describe whar happens ro potential energy: as the height of an object increases
    9·2 answers
  • If the atoms that share electrons have an unequal attraction for the electrons is called
    12·1 answer
  • estimate the number of breaths taken by a human being during an average lifetime. (we estimate an average respiration rate of ab
    8·1 answer
  • Reasons why water and wind erosion are diffrent.
    13·2 answers
  • Determine the dimensions (a, b) of an air-filled rectangular waveguide that providessingle mode operation over the frequency ran
    13·1 answer
  • How many different plant and animal species can be found in tropical rainforests
    6·2 answers
  • How can scientist best confirm and validate the result of an experiment so they can publish their findings?
    14·2 answers
  • What thermodynamic property describes the relationship of an equilibrium to temperature?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!