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2 years ago

the table below shows the effect conditions on a car stopping distance. in witch condition was the car travelling most slowly

Physics

1 answer:

nikdorinn [45]2 years ago

7 0

Answer: Car 5

Explanation:

Higher speeds mean higher braking times so the car with the highest braking distance was travelling the the fastest and the car with the lowest braking distance was traveling the slowest.

Braking distance = Stopping distance - Thinking distance.

Car Braking distance

1 38

2 50 = 65 - 15

3 75

4 75

5 14 = 23 - 9

Car 5 had the lowest braking distance so was going the slowest.

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3 years ago

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sergiy2304 [10]

Answer:

$a=9\ cm/s^2$

Explanation:

Average Acceleration

Acceleration is a physical magnitude defined as the change of velocity over time. When we have experimental data, we can compute it by calculating the slope of the line in velocity vs time graph.

Note: We cannot see if the time axis is numbered in increments of 1 second, and we'll assume that.

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6 0

2 years ago

Calculate the kinetic energy in joules of a 1200 kg automobile moving at 18 m/s .

vodka [1.7K]

Answer:

194,400 joules of kinetic energy.

Explanation:

Remember that to calculate the Kinetic energy you need to use the next formula:

$Ke=\frac{1}{2}Mass*Velocity^2$

We know that Mass= 1200 kg and velocity is 18m/s, so we insert those values into the formula:

$Ke=\frac{1}{2}Mass*Velocity^2\\Ke=\frac{1}{2}1200kg*(18m/s)^2\\Ke=194,400 joules$

So the kinetic energy of a car moving at 18m/s with a mass of 1200 kg would be 194,400 joules.

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3 years ago

Read 2 more answers

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At the same speed because it will slow down as it approaches the peak then speed up as it goes down again

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2 years ago

the table below shows the effect conditions on a car stopping distance. in witch condition was the car travelling most slowly​

the table below shows the effect conditions on a car stopping distance. in witch condition was the car travelling most slowly