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
ra1l [238]
3 years ago
14

A roller coaster is moving at 25m/s at the bottom of a hill. Three seconds later it reaches the top of the hill moving at 10m/s.

What was the acceleration of the coaster
Physics
1 answer:
marishachu [46]3 years ago
8 0

Answer:

5 m/s^{2}

Explanation:

acceleration is defined as the rate of change of velocity per unit time. Therefore, acceleration, a=\frac {\triangle v}{\triangle t}

where \triangle v is change in velocity and t is time

Substituting initial and final velocities with 25 m/s and 10 m/s then using time as given in the question of 3 s then

a=\frac {25-10}{3}=\frac {15}{3}=5 m/s^{2}

Therefore, the acceleration is 5 m/s^{2}

You might be interested in
6.<br> What is the speed of a rocket that travels 9000 meters in 12.12 seconds?
kkurt [141]

Answer:

742.57 m/s

Explanation:

Given:

Distance travels by a rocket = 9000 metres

Time taken by rocket = 12.12 seconds

Questioned asked:

Speed of rocket = ?

Solution:

By applying formula, speed = distance traveled divided by time taken

                                speed = \frac{distance}{time} \\           = \frac{9000}{12.12} \\           = 742.57m/s

Therefore, the speed of a rocket that travels 9000 meters in 12.12 seconds is 742.57 meters per seconds.

5 0
3 years ago
Which of these abiotic factors is most likely the reason some plants cannot live very close to the ocean?
arlik [135]
Salty soil is the answer, plants can survive in warm climates, they use Carbon Dioxide to breathe and make oxygen, and still use whatever light that they can.
5 0
3 years ago
Hi, can you please help me? as fast as possible
Mashcka [7]

Answer:

Explanation:

Absolutely Newtons third law states that for every action there is a equal and opposite reaction a real world example would be when you jump your legs apply a force to the ground, and the ground applies an equal and opposite force that propels you in the air

8 0
3 years ago
HEYYYYYY HEYYYYYYYYY
weeeeeb [17]

Answer: i dont know what is happening but I'm answering with another HEEEYYYYYYY HEYYYYYYYY

Explanation:

8 0
2 years ago
Read 2 more answers
What are the magnitude and direction of the acceleration of an electron at a point where the electric field has magnitude 7400 N
bezimeni [28]

Answer: a = 1.32 * 10^18m/s² due north

Explanation: The magnitude of the force required to move the electron is given as

F = ma

The force exerted on the charge by the electric field of intensity (E) is given by

F = Eq

Thus

Eq = ma

a = E * q/ m

Where a = acceleration of charge

E = strength of electric field = 7400N/c

q = magnitude of electronic charge = 1.609 * 10^-6c

m = mass of an electronic charge = 9.109 * 10^-31kg

a = 7400 * 1.609 * 10^-16/ 9.109 * 10^-31

a = 11906.6 * 10^-16 / 9.019 * 10^-31

a = 1.19 * 10^-12 / 9.019 * 10^-31

a = 0.132 * 10^19

a = 1.32 * 10^18m/s²

As stated in the question, the direction of the electric field is due north hence, the direction of it force will also be north thus making the electron experience a force due north ( according to Newton second law of motion)

5 0
3 years ago
Other questions:
  • Help me with 5 daily life situations to find the resultant force.
    5·1 answer
  • (30 Points) The peak intensity of radiation from a star named Sigma is 2 x 10^6 nm. What is the average surface temperature of S
    14·1 answer
  • Ultraviolent radiation is one of many types of energy that comes to Earth from the Sun.
    15·2 answers
  • Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 90.0 kg, down a 60.0° slope at constant speed, a
    8·2 answers
  • If a bicyclist has a mass of 70 KG and a velocity of 25M/S, what is the momentum of the bicyclist?
    5·1 answer
  • 1) Which one of the following is vector,<br>B) Momentum<br>C) Mass<br>A) Energy<br>D) Temperature​
    12·1 answer
  • 4. A spring with a mass of 400.0 g is set into simple harmonic motion. The graph of the force of the spring vs. displacement is
    11·2 answers
  • What effect would a barrier island have on the shoreline of the mainland?
    6·1 answer
  • Need help with # of protons
    9·2 answers
  • when heated the temperature of a water sample increased from 15°C to 39°C. Is absorbed 41840 joules of heat. what is the mass of
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!