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
ZanzabumX [31]
3 years ago
13

a car, which has a mass of 2000kg traveled a distance of 200 meters in 5 seconds. After 20 seconds the car was raveling at a spe

ed of 60 m/s what is the force of the car?
Physics
1 answer:
iragen [17]3 years ago
4 0

Answer:

Explanation:

vi = 200/5 = 40 m/s

a = (vf - vi)/t = (60 - 40)/20 = 1 m/s²

F = ma = 2000(1) = 2000 N

You might be interested in
The Nucleus of the Atom is in the center of the Atom, not in the outer rings & orbitals.
chubhunter [2.5K]

Answer:

true

Explanation:

this the nucleus is located at the centre and contains protons and neutrons

3 0
3 years ago
A machine does 50 J of Work on a 10 Kg Object. What is the Change in the Objects Total Energy?
Otrada [13]

The change in the total energy of the object is zero (0).

The given parameters:

work done by the machine, W = 50 J

mass of the object, m = 10 kg

To find:

the change in the total energy of the object

The change in the total energy of the object is the difference between the objects initial energy due to its position and the work done on the object.

Based on work energy-theory, the work done on the object is equal to the energy of the object.

  • The energy of the object = work-done on the object
  • The change in total energy = 50 J - 50 J = 0

Thus, the change in the total energy of the object is zero (0).

Learn more here: brainly.com/question/20377140

3 0
3 years ago
April and Alex are saving money to buy new phones. Each friend starts with some money and saves a specific amount each week.
qwelly [4]
First thing to note is that we are on week 0, when they start saving:

The equation for Alex is:

y=20x + 125 

Know that we are on week 0, and x is our weeks, that makes our equation:

y=20(0) + 125 

Which means it's really:

y=125

That means that the first one is E. 125

For the second, it shows our week 0, which is at 100.

That means that the second one is I. 100

Hope this helps!
5 0
4 years ago
Read 2 more answers
A small marble attached to a massless thread is hung from a horizontal support. When the marble is pulled back a small distance
s2008m [1.1K]

Answer:

f' = 2 f

Explanation:

The frequency of the pendulum that swings in simple harmonic motion is given by :

f={2\pi}\sqrt{\dfrac{l}{g}}

Where

l is the length of pendulum

g is the acceleration due to gravity

If the length of the thread is increased by a factor of 4, such that, l' = 4 l, let f' is the new frequency such that,

f'={2\pi}\sqrt{\dfrac{l' }{g}}

f'={2\pi}\sqrt{\dfrac{4l}{g}}

f'=2\times {2\pi}\sqrt{\dfrac{l}{g}}

f' = 2 f

So, the new frequency of the pendulum will become 2 time of initial frequency. Hence, the correct option is (b) "2f"

3 0
3 years ago
At a particular instant, a stationary observer on the ground sees a package falling with speed v1 at an angle to the vertical. t
Lerok [7]
V1 * sin(θ) where θ is the angle v1 makes with the vertical.
7 0
4 years ago
Other questions:
  • During a softball game, a shortstop catches a ground ball. The action force is the ball pushing on the glove. What is the reacti
    12·2 answers
  • A 58.0 kg snow skier is on the top of 351 m high hill. After she has gone down a vertical distance of 142 m, what is her mechani
    9·1 answer
  • The power grid is the system that transfers electricity to homes and businesses. A power plant produces electricity. The output
    9·2 answers
  • A person is running a 10km race. They start at 4m/s and it takes them 41.67 minutes to run the race. What’s their acceleration
    5·1 answer
  • a bomber is flying horizontally at a speed of 800.0 ft/s and an altitude of 1000.0 ft when it is drops a bomb
    11·1 answer
  • The current flow occurs due to the difference in _______.
    13·1 answer
  • John shot a bullet from his rifle with a speed of 650 m/s. How much time is needed for the bullet to strike a target 3900 m away
    5·1 answer
  • 9. The momentum of a car traveling in a straight line at 30. m/sec is
    11·1 answer
  • The work required to move a box a particular distance is 300 J. How much power is required to move the box in 3 seconds?
    7·1 answer
  • Need help asap
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!