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
lianna [129]
3 years ago
11

How much kinetic energy is in a runner weighing 83 kg moving at a velocity of 16 m/s

Physics
1 answer:
ra1l [238]3 years ago
3 0

Answer:

10,624J

Explanation:

KE = 1/2 m*v²

KE = 1/2 83*16²

KE = 41.5*256

KE = 10,624J

You might be interested in
A net force of –8750N is used to stop of 1250.kg car travelling 25m/s. What braking distance is needed to bring the car to a hal
Karolina [17]

Answer:

d = 44.64 m

Explanation:

Given that,

Net force acting on the car, F = -8750 N

The mass of the car, m = 1250 kg

Initial speed of the car, u = 25 m/s

Final speed, v = 0 (it stops)

The formula for the net force is :

F = ma

a is acceleration of the car

a=\dfrac{F}{m}\\\\a=\dfrac{-8750}{1250}\\\\a=-7\ m/s^2

Let d be the breaking distance. It can be calculated using third equation of motion as :

v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}\\\\d=\dfrac{0^2-(25)^2}{2\times (-7)}\\\\d=44.64\ m

So, the required distance covered by the car is 44.64 m.

4 0
3 years ago
Please help, I do not understand what the question is asking
erica [24]
I’m pretty sure it just wants you to list the property’s meaning the material and density
3 0
3 years ago
Barbara places an object in front of a mirror. The mirror produces an image that is inverted, real, and smaller than the object.
Darya [45]

Concave is what your looking for

4 0
3 years ago
Read 2 more answers
Nancys airplane trip took 4 hour. For one-fourth of that time, the airplane flew at a speed of 880 km/h, it flew at a speed of 6
9966 [12]
So for a minute lets ignore the 880 km/h. If it took 4 hours and she flew at 600 km/h 600*4=2400. Now lets Look at the 880 bit. If it took 4 hours and she where to fly at 880 it would've been 880*4=3520. Lets do 2400-600=1800, now we've got the 600 kmh bit done. Now lets see if you fly 880 km/h for one hour then you add 1800+880=2680. 

Remember to thank and rate people who help you!
4 0
3 years ago
Explain the relationships between gravity, mass, and distance.
Mazyrski [523]

Answer:

As the mass of an object increases, its gravitational force increases.

As an object's distance to other objects increases, its gravitational force on those objects increases.

Explanation:

The gravitational force of one object on another is calculated with the equation

F = (G*m1*m2)/(r²),

where G is the gravitational constant,

M1 and M2 are the masses of the two objects, and

r is the distance between them

We can see that the force has a direct relationship with both of the mass values, and an inverse square relationship with the distance between them.

Hope this helped!

7 0
3 years ago
Read 2 more answers
Other questions:
  • Uma pessoa exercita-se em uma esteira rolante manual. Ela andou 20 minuots com velocidade de 5.4km/h e consumuiu 200 quilocalori
    9·1 answer
  • If a bus you are riding is traveling at a constant speed and then stops suddenly, you feel "thrown" forward. Which of the follow
    15·1 answer
  • A football is place kicked with a velocity having a vertical component of 12 m/s and a horizontal component of 6 m/s. Find the r
    9·1 answer
  • How do you calculate the speed of a wave? Write and label the formula.
    8·2 answers
  • Electric field lines always begin at _______ charges (or at infinity) and end at _______ charges (or at infinity). One could als
    5·1 answer
  • Why are we buried in the ground when we die?
    13·2 answers
  • How much work is done when a very large force is applied to an object but does not move the object?
    6·2 answers
  • In case 1, a force f is pushing perpendicular on an object a distance l/2 from the rotation axis. in case 2 the same force is pu
    10·1 answer
  • Give reason.<br><br><br>b} String roller is an example of wheel and axel .Why?<br><br>​
    6·1 answer
  • What 3 words complete the sentence?<br>A moving object always has energy in its​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!