Answer:gravity
Explanation:
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The average speed of a cheetah that runs 140 meters in 5 seconds is calculated by dividing the distance by time, which equals 28 m/s.
To calculate the average speed of a cheetah running a distance of 140 meters in 5 seconds, we use the formula for average speed which is:
Average Speed = Distance / Time
Substituting the given values of distance and time in this equation, we get:
Average Speed = 140 meters / 5 seconds
Solving this, we obtain the average speed of the cheetah as 28 m/s.
The average speed is a scalar, meaning we do not include direction in the answer. For comparison purposes, the speed of a typical automobile might be around 15 m/s.
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displacement from station A to station B is __km
Here, we are required to find the magnitude of the bus
displacement from station A to station B.
The magnitude of the bus
displacement from station A to station B is 5km.
The magnitude of the displacement is the "distance between the starting position of a body or object and the end position of that body or object".
The bus moves 4kmnorth and then moves 3km west, forming a right triangle. Its displacement is therefore the length of the hypotenuse.
let
x = length of the hypotenuse.
x² = 3² + 4²
x² = 9 + 16
x² = 25
Then remove the square on x by adding square roots to both sides
√x² = √25
x = √25
x = 5
The magnitude of the bus's displacement from station A to station B is 5 km.
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Explanation:
The magnitude of the displacement is the distance between the starting position and the end position.
The bus moves north, then west, forming a right triangle. Its displacement is therefore the length of the hypotenuse.
x² = 3² + 4²
x = 5
The magnitude of the bus's displacement from station A to station B is 5 km.
Amplitude
Hertz
Period
Second