3 years ago

How do you calculate speed

Physics

2 answers:

Kryger [21]3 years ago

8 0

Answer:

distance(d)=.....

time(t)=....

speed =?

we know that

speed =distance /time

Amanda [17]3 years ago

5 0

The formula for speed is speed = distance ÷ time.

Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.

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A car initially traveling 7 m/s speeds up uniformly at a rate of 3 m/s2 until it reaches a velocity of 22 m/s. How much time did

dezoksy [38]

Answer:

t = 5 s

Explanation:

Data:

Initial Velocity (Vo) = 7 m/s
Acceleration (a) = 3 m/s²
Final Velocity (Vf) = 22 m/s
Time (t) = ?

Use formula:

$\boxed{t=\frac{Vf - Vo}{a}}$

Replace:

$\boxed{t=\frac{22\frac{m}{s} -7\frac{m}{s}}{3\frac{m}{s^{2}}}}$

Solve the subtraction of the numerator:

$\boxed{t=\frac{15\frac{m}{s}}{3\frac{m}{s^{2}}}}$

It divides:

$\boxed{t=5\ s}$

How much time did it take the car to reach this final velocity?

It took a time of <u>5 seconds.</u>

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3 years ago

What is not an example of Absorption? (Physics)

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If a train travels at a speed of 40 km/h for 3 hours, how far will it travel

VikaD [51]

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__________ is when all light rays bounce off an object at the same angle.

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Diffuse reflection have a great day