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stepladder [879]
3 years ago
12

What is the average acceleration of a car that starts from

Physics
2 answers:
MAXImum [283]3 years ago
4 0

Answer:

1.5m/s^2

Explanation:

In the picture above.

mr Goodwill [35]3 years ago
4 0

<u>Answer:</u>

The car is moving at an average acceleration of 1.5 m/s2

<u>Explanation</u>:

According to the question,

The car is moving in a straight road

The speed of the car = 18 m/s

Time is given (t) = 12 s

Acceleration is the rate of change of speed with respect to time. It is computed by the formula;

\text { Acceleration }=\frac{\text {Speed }}{\text {Time}}

Acceleration = (18 m/s)/(12 s)= 1.5 m/s2

\text { Acceleration }=\frac{18 \mathrm{m} / \mathrm{s}}{12 \mathrm{s}}=1.5 \mathrm{m} / \mathrm{s}^{2}

Therefore, the car is moving at an average acceleration of 1.5 m/s2

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Please answer all of these questions and you will get the brain list
pogonyaev

Answer:

1=900j

2=140j

3=5m

Explanation:

1,

work=force×displacement

w=450×2

w=900j

2,

w=f×s

w=70×2

w=140j

3,

w=f×s

200=40×s

200/40=s

s=5m

6 0
3 years ago
Heather drops a ball weighing 0.50kg a distance of 2.0m. If the speed of the ball right after it bounces is the same speed of th
ki77a [65]
The speed of the ball just before impact was v=√(2gh) = 6.26m/s.  The acceleration is twice this over the time (twice because the second speed is the same in the other direction, meaning the total change in speed is 2V)
a = 12.52/0.10 = 125.2m/s²
The force is F=ma, so F = 0.5kg·125.2m/s² = 62.6N
7 0
3 years ago
Qué tipo de onda tiene mayor velocidad: Onda mecánica en un sólido Onda electromagnética Onda mecánica en el aire
kogti [31]

Answer:

Onda electromagnética

Explanation:

Las ondas mecánicas requieren un medio material para la propagación, mientras que las ondas electromagnéticas no requieren un medio material para la propagación.

Generalmente, las ondas electromagnéticas se mueven con una velocidad muy alta.

Todas las ondas electromagnéticas se denominan colectivamente luz y tienen una velocidad común de 3 × 10 ^ 8 m / s en el aire.

Ninguna onda mecánica tiene una velocidad tan alta en el aire.

7 0
3 years ago
How can you decrease the momentum of an object?
mamaluj [8]
You will have to "put force against the object to slow it down." Momentum is the force that is keeping a object moving in a certain direction so if you would want to slow down the object you will have to put another force against the object to slow it down or stop it. For example: a person kicks a ball, the ball moving is the momentum. So, if you would want to stop the ball you would have t put something in its path to slow it down which is the decreasing of it's momentum. Therefore you would put a bump in the wall and when the ball hits the bump it slows down.

Hope this helps!
7 0
3 years ago
Read 2 more answers
A projectile is fired horizontally off the top of a cliff with an initial velocity of 30 m/s. It hits the ground 2.0 seconds lat
Mandarinka [93]

Answer:

The horizontal distance traveled by the projectile is 60 m

Explanation:

Given;

initial horizontal velocity of the projectile, Vₓ = 30 m/s

time of the motion of the projectile, t = 2 s

The horizontal distance traveled by the projectile is given by the range of the projection;

X = Vₓt

X = 30 x 2

X = 60 m

Therefore, the horizontal distance traveled by the projectile is 60 m

Therefoe

6 0
2 years ago
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