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Fantom [35]
3 years ago
15

How do you calculate the speed of an object?

Physics
2 answers:
prohojiy [21]3 years ago
7 0
<span>speed is calculated by finding how much distance is traveled and in how much time, then divide the distance by the time ! :)</span>
lukranit [14]3 years ago
3 0

Answer:

\huge \boxed{S=\frac{d}{t} }

\rule[225]{225}{2}

Step-by-step explanation:

The formula to find speed is as follows:

\Longrightarrow \ \  \displaystyle \sf speed =\frac{distance \ travelled }{time \ taken}

\Longrightarrow \ \  \displaystyle S =\frac{d }{t}

You divide the distance travelled by the time taken to find the speed.

\rule[225]{225}{2}

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Suppose the coefficient of static friction between a quarter and the back wall of a rocket car is 0.383. At what minimum rate wo
djverab [1.8K]

Answer:

25.59 m/s²

Explanation:

Using the formula for  the force of static friction:

f_s = \mu_s N --- (1)

where;

f_s = static friction force

\mu_s = coefficient of static friction

N = normal force

Also, recall that:

F = mass × acceleration

Similarly, N = mg

here, due to min. acceleration of the car;

N = ma_{min}

From equation (1)

f_s = \mu_s ma_{min}

However, there is a need to balance the frictional force by using the force due to the car's acceleration between the quarter and the wall of the rocket.

Thus,

F = f_s

mg = \mu_s ma_{min}

a_{min} = \dfrac{mg }{ \mu_s m}

a_{min} = \dfrac{g }{ \mu_s }

where;

\mu_s = 0.383 and g = 9.8 m/s²

a_{min} = \dfrac{9.8 \ m/s^2 }{0.383 }

\mathbf{a_{min}= 25.59 \ m/s^2}

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<h3>What is Traffic light?</h3>

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In cases where there is no officer, the traffic light must be obeyed but where the officer is present then his authority overrules and must be obeyed as he is in the best position to know the reason why the traffic light should be ignored in this type of scenario.

This is therefore the reason why the individual should go through the intersection without stopping.

Read more about Traffic light here brainly.com/question/28033780

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