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
PSYCHO15rus [73]
2 years ago
15

A 600g toy train completes 10 laps of its circular track in 1 min 20s. If the radius of the track is 1.2 m, Find the centripetal

acceleration of the train in m/s2
Physics
1 answer:
Lynna [10]2 years ago
4 0

Wow !  This will take more than one step, and we'll need to be careful
not to trip over our shoe laces while we're stepping through the problem.

The centripetal acceleration of any object moving in a circle is

                          (speed-squared)  /  (radius of the circle)  .

Notice that we won't need to use the mass of the train.

We know the radius of the track.  We don't know the trains speed yet,
but we do have enough information to figure it out.  That's what we
need to do first.

Speed  =  (distance traveled) / (time to travel the distance).

Distance = 10 laps of the track.   Well how far is that ? ? ?

1 lap = circumference of the track = (2π) x (radius) =  2.4π  meters

10 laps =  24π  meters.

Time = 1 minute 20 seconds  =  80 seconds

The trains speed is  (distance) / (time)

                               =  (24π meters) / (80 seconds)

                               =        0.3 π  meters/second .

NOW ... finally, we're ready to find the centripetal acceleration.

                                 <span> (speed)²  /  (radius)

                           =    (0.3π m/s)²  /  (1.2 meters)

                           =    (0.09π m²/s²)  /  (1.2 meters)

                           =    (0.09π  /  1.2)   m/s²

                           =          0.236  m/s²  .        (rounded)

If there's another part of the problem that wants you to find
the centripetal FORCE ...

Well,       Force = (mass) · (acceleration) .

We know the mass, and we ( I ) just figured out the acceleration,
so you'll have no trouble calculating the centripetal force.       </span>
You might be interested in
Using the formula F = M* A. What is the acceleration of a .5 kg
Katyanochek1 [597]

Answer:32 m/s/s

Explanation: since F=M*A, F=16N, M=0.5kg, A= F/M

A=16/0.5

A=32 m/s/s

7 0
2 years ago
Which is the correct order to use in writing the name of an ionic compound?
muminat

Answer:anion followed by cation

Explanation:

8 0
2 years ago
Read 2 more answers
NEED HELP
aniked [119]

Answer:

I = 0.25 [amp]

Explanation:

To solve this problem we must use ohm's law which tells us that the voltage is equal to the product of the current by the resistance.

V = I*R

where:

V = voltage [Volt]

I = amperage or current [amp]

R = resistance [ohm]

Since all resistors are connected in series, the total resistance will be equal to the arithmetic sum of all resistors.

Rt = 2 + 8 + 14

Rt = 24 [ohm]

Now clearing I for amperage

I = V/Rt

I = 6/24

I = 0.25 [amp].

5 0
3 years ago
Name three different avenues by which Thomas Edison received an education
klio [65]
Edison's education is most unique and relevant.

1. The first teacher he had was his mother
2. He found vital lessons and was influenced greatly by the book of R.G. Parker called School of Natural Philosophy
3. Another educating piece he had was a book entitled The Cooper Union for the Advancement of Science and Art

His style of learning was though reading books on a variety of subjects, a self-educating environment that fosters independent learning which can be useful through his life.
5 0
3 years ago
A bowling ball is rolling at a velocity of 56 km/h with a momentum of 130 kg-m/s. What is its
Deffense [45]

Answer:

Explanation:

Momentum

8 0
2 years ago
Other questions:
  • An electron with kinetic energy 2.9 keV moving along the positive direction of an x axis enters a region in which a uniform elec
    14·1 answer
  • True or False: The more mass an object has, the faster it will fall.
    6·2 answers
  • A girl lifts a 160-N load to a height of 1 m in 0.5 s. How much power is used to lift the load?
    15·1 answer
  • A bicycle tire is spinning counterclockwise at 2.70 rad/s. During a time period Δt = 1.50 s, the tire is stopped and spun in the
    14·2 answers
  • A pure substance can be a ..................... (a) element (b) compound (c) either element or compound (d)none of these
    11·2 answers
  • The ammonia molecule (NH3) has a dipole moment of 5.0×10?30C?m. Ammonia molecules in the gas phase are placed in a uniform elect
    8·1 answer
  • How much force is needed to stop a 4000 kg truck moving at 8 m/s in 0 2 seconds?​
    12·1 answer
  • A 48 N force accelerates a block at 6 m/s/s. What is the mass of the block?
    11·1 answer
  • If you put 3.27 moles of an ideal
    15·2 answers
  • Three balls are thrown off the top of a building, all with the same speed but with different launch angles (position is given in
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!