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zhuklara [117]
3 years ago
9

A car going 22 m/s increases its speed to pass a truck. Five seconds later the car is going 35 m/s. Calculate the acceleration o

f the car.
Variable
Equation
Solve

Physics
2 answers:
wel3 years ago
6 0

Answer:

a = 2.6 m/s

Explanation:

a = v - u / t

a = 35 m/s - 22 m/s /  5 seconds

a = 2.6 m/s^2

jonny [76]3 years ago
4 0

Answer:

I don't know

Explanation:

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A water wheel rotates with a period of 2.26 s. If the water wheel has a radius of l.94 m,
Dafna11 [192]

Answer:

The correct answer is B)

Explanation:

When a wheel rotates without sliding, the straight-line distance covered by the wheel's center-of-mass is exactly equal to the rotational distance covered by a point on the edge of the wheel.  So given that the distances and times are same, the translational speed of the center of the wheel amounts to or becomes the same as the rotational speed of a point on the edge of the wheel.

The formula for calculating the velocity of a point on the edge of the wheel is given as

V_{r} = 2π r / T

Where

π is Pi which mathematically is approximately 3.14159

T is period of time

Vr is Velocity of the point on the edge of the wheel

The answer is left in Meters/Seconds so we will work with our information as is given in the question.

Vr = (2 x 3.14159 x 1.94m)/2.26

Vr = 12.1893692/2.26

Vr = 5.39352619469

Which is approximately 5.39

Cheers!

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2 years ago
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yawa3891 [41]
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3 years ago
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Schach [20]

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Or speed is distance over time

So...

40min / 60min = 0.6667 or 2/3 --> Finding what proportion 40 minutes is to an hour or 60 minutes as we need the units of hours to match up

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4 0
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How are feathers heavy as steel?
Alekssandra [29.7K]

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