What is an example of Deceleration?

Answers

Answer 1

Answer: That's a word often used to mean "slowing down". An example is what happens
when the brake is applied in a moving car.

But 'deceleration' is a very unofficial, unscientific word. If the forward speed
is decreasing, then a much more useful concept is "negative acceleration".

Answer 2

Answer: When the body starts moving with a slower speed than the initial speed and it slows down continuously, the this is called deceleration. Examples of deceleration -

When a ball is thrown upwards, its speed goes on decreasing as its height increases.
When a car applies brakes.

Related Questions

Which most likely could cause acceleration? Check all that apply.a flat roadwindwater movementa hilla stop light *can be multiple answers*
Two stars in the night sky make an angle of 10^-3 radians at the eye of Matilda. If Arthur, who can just distinguish two spots, 0.5 cm apart, at a distance of 10 m views the stars, can he distinguish them as two distinct objects?
A kilowatt-hour (kW-h) must be a unit of _____.A. mass B. force C. power D. energy
Over time how will erosion and deposition affect a mountain range?Explain.
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Your physics teacher is giving you a special gift a box of mass 20 kg with a mystery surpise insie .the box is placed on a frictionsed table .what is the weigth of the box and normal reaction over it by the table ?

Answers

Answer:

F = 196.2 N

Explanation:

Use Newtons law

F = m * a

F = 20 kg * 9.81 m/s²

F = 196.2 N

Answer:

$\Huge \boxed{\mathrm{196.2 \ N}}$

$\rule[225]{225}{2}$

Explanation:

Using weight formula:

$\sf Weight = mass * acceleration \ of \ gravity$

$W=mg$

The mass of the box is 20 kg.

The acceleration of gravity on Earth is 9.81 m/s².

$W=(20)(9.81)$

$W=196.2$

The weight of the box is 196.2 N.

The net force of the box is zero, since the box is at rest. The normal force is exerted upward on it by the table.

$\rule[225]{225}{2}$

Which of the following best defines the science of separating color wavelengths?a. spectroscopy
b. color-detection
c. photo-chemistry
d. spectrophotometry

Answers

Answer: spectroscopy

Spectroscopy is the separation of the light in the different wavelengths and spectrophotometry measures the intensities of the different components of the light to get the composition of substances.

Answer:

Explanation:

I took the test :)

Which of these is NOT an event that helped make the Moon as it is today?a. Iron sank into Earth's core.
b. Plate tectonics caused lava to flow.
c. Earth and a planetesimal collided.
d. The lunar surface melted and was bombarded by meteoroids

Answers

The correct answer to the question that is stated above is letter b, Plate tectonics caused lava to flow. All of the options are mentioned in the theories of the formation of the moon except for letter B.

There are 5 serious theories about the formation of the moon,these are:
The Fission Theory--
The Capture Theory--
The Condensation Theory--
The Colliding Planetesimals Theory--
The Ejected Ring Theory--

See attached file for the description of each theory.

Snowshoes enable a person to walk on deep snow because the snowshoesa. decrease the person’s weight on the snow.
b. increase the area over which the person’s weight is distributed.
c. increase the pressure on the snow.
d. increase the buoyancy of the person.

Answers

Answer:

Option B is correct.

Explanation:

Snowshoes has large area of crossection.

As a person wears the snowshoes, the weight of the person distributed over a large area and thus the pressure exerted by the surface due to the weight of the person is less.

The relation among pressure, force and area of crossection is given below.

$Pressure = (Force)/(Area of crossection)$

As area of crossection is large, pressure is small and thus the person walk on deep snow.

What is the speed of sound, when travelling through steel?

Answers

20000 ft/s or 6100 m/s

Light enters water from air at an angle of 25° with the normal, Θ1. If water has an index of refraction of 1.33, determine Θ2.A) 18.5°
B) 34.2°
C) 31.8°
D) 71.5°

Answers

By Snell's law:

η = sini / sinr. i = 25, η = 1.33

1.33 = sin25° / sinr

sinr = sin25° / 1.33 = 0.4226/1.33 = 0.3177 Use a calculator.

r = sin⁻¹(0.3177)

r ≈ 18.52°

Option A.

God's grace.

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