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
DiKsa [7]
1 year ago
15

HELPPPPPPPPPPPPP

Physics
1 answer:
kogti [31]1 year ago
7 0

The acceleration of the roller coaster car is equal to 42.9 m/s².

<h3>What is the equation of motion?</h3>

The equations of motion of a moving object are the equation that described the relationship between acceleration, velocity, time, and displacement of an object.

The expression of the equations of motions can be written as shown below:

v= u +at\\S = ut +\frac{1}{2}at^2\\ v^2-u^2 =2aS

Given, the velocity at the top of the hill, u = 0

The distance covered by the roller coaster, S = 71 m

The time taken for the drop, t = 1.82 sec

The equation of motion: S = ut + (1/2) at²

71 = (0) (1.82) + (1/2)×a ×(1.82)²

a = 42.9 m/s²

Learn more about the equation of motion, here:

brainly.com/question/16982759

#SPJ1

You might be interested in
sonic is sliding down a frictionless 15m tall hill. He starts at the top with a velocity of 10m/s. At the bottom of the hill he
podryga [215]

Answer:

The maximum speed of sonic at the bottom of the hill is equal to 19.85m/s and the spring constant of the spring is equal to (497.4xmass of sonic) N/m

Energy approach has been used to sole the problem.

The points of interest for the analysis of the problem are point 1 the top of the hill and point 2 the bottom of the hill just before hitting the spring

The maximum velocity of sonic is independent of the his mass or the geometry. It is only depends on the vertical distance involved

Explanation:

The step by step solution to the problem can be found in the attachment below. The principle of energy conservation has been applied to solve the problem. This means that if energy disappears in one form it will appear in another.

As in this problem, the potential and kinetic energy at the top of the hill were converted to only kinetic energy at the bottom of the hill. This kinetic energy too got converted into elastic potential energy .

x = compression of the spring = 0.89

5 0
3 years ago
a Porsche 911 accelerates from rest to 27 metre per second due north in 5.8 seconds the mass of the car is 1400 kg what is the m
user100 [1]

Answer:

The average force has a magnitude 6524 N due north.

Explanation:

The average net force F = ma where m = mass of car = 1400 kg and a = acceleration.

a = (v - u)/t where u = initial velocity of car = 0 m/s (since it starts from rest)

v = final velocity of car = 27 m/s due north and t = time of motion = 5.8 s

a = (27 m/s - 0 m/s)/5.8 s = 27 m/s ÷ 5.8 s = 4.66 m/s

Since the direction of the velocity change is the direction of the acceleration, the acceleration is 4.66 m/s due north.

The average force, F = ma = 1400 kg × 4.66 m/s = 6524 N

Since the acceleration is due north, the average force takes the direction of the acceleration.

So the direction of the average force is due north

The average force has a magnitude 6524 N due north.

7 0
3 years ago
Does lightning McQueen have car or life insurance?
shutvik [7]
I am taking an educated guess that he has life insurance
7 0
3 years ago
Parallel light rays are refracted _______and_____ to a point called as focal point after passing through convex lens.
tatuchka [14]
Left and right to a point called ad focal point after passing through convex lens
4 0
2 years ago
A car is travelling at 20m/s, accelerates at 4m/s2 . Calculate its velocity after 5s?
IgorLugansk [536]

Answer:

<u>40 m/s</u>

Explanation:

The final velocity of an object that experiences a period of acceleration is given by:

v - vi = A*t

Initial velocity, vi, is = 20m/s

Acceleration, A, is 4m/2^2

Time, t, is 5 seconds

v - vi = A*t

v - 20m/s = (4m/2^2)/(5 sec)

v = (20 m/s) + (20 m/s)

v = 40 m/s

5 0
2 years ago
Other questions:
  • The temperature of the ideal gas in the container shown is 300 K. The gas occupies a volume of 1.27 m3. What would the volume of
    15·2 answers
  • Josie sees lightning off in the distance. A few seconds later she hears thunder. What can Josie conclude?
    14·2 answers
  • your drop a coin from the top of a hundred-story building(1000m). If you ignore air resistance, how fast will it be falling righ
    8·2 answers
  • If there were no current in the wire running through the magnet, what could you do to induce an electric current?
    7·1 answer
  • A small Styrofoam bead with a charge of −60.0 nC is at the center of an insulating plastic spherical shell with an inner radius
    15·1 answer
  • 6. Decelerating a plane at a uniform rate of -8 m/s2, a pilot stops the plane in 484 m. How
    6·1 answer
  • Peas can both cross-pollinate and self pollinate. why was this a key factor in Mandela work
    10·1 answer
  • An organ pipe is 2m long, open at one end, and closed at the other. What is the wavelength of the third harmonic for this organ
    9·1 answer
  • Stella is driving down a steep hill. she should keep her car __________ to help _________.
    9·1 answer
  • Which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!