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worty [1.4K]
2 years ago
5

Runner A takes 45 s to run 400 m. Runner B takes 48 s to run the same distance. Which runner has the greater average speed?​

Physics
1 answer:
Natalka [10]2 years ago
6 0
Runner A because they completed it in a less amount of time
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The S-strain Pneumococcus bacteria had a smooth surface, because ____________________.
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Salmon often jump waterfalls to reach their
natta225 [31]

Answer:

5.0 m/s

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v_x = u cos \theta

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t=\frac{d}{v_x}=\frac{d}{u cos \theta} (1)

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y=h+u_y t -\frac{1}{2}gt^2

where:

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h = 0 is the initial height

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t is the time

Substituting t as found in eq.(1), we get the equation

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5 0
3 years ago
A car accelerates for 10 seconds. During this time, the angular
bagirrra123 [75]

Answer:

the angular acceleration of the car is 1.5 rad/s²

Explanation:

Given;

initial angular velocity, \omega_i = 10 rad/s

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time of motion, t = 10 s

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Therefore, the angular acceleration of the car is 1.5 rad/s²

4 0
3 years ago
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