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Natasha_Volkova [10]

3 years ago

8

Bodies weighing 1 kilogram and 5 kilograms lie on a smooth horizontal surface. If a traction force of 0.6 N acts on another 5 kg

body, determine the acceleration of these bodies.

1 answer:

natima [27]3 years ago

6 0

0.6/5,1,5

so calculate it

not so sure though

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When fireworks explode, sound and light are produced. These are examples of

ki77a [65]

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Answers to the rest:

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2 years ago

Study the motion map shown. what do the circled vectors represent?

BabaBlast [244]

Answer:

It's option d - Negative acceleration

Explanation:

Let's start by demonstrate why <em>it's not option b - Speed : </em>Speed is a scalar quantity so it can not be represented by a vector

Let's check that <em>the green vectors represent velocity</em> (velocity is a vector quantity, velocity is a direction aware, while speed is just a scalar)

Now let's show that the circled vectors are acceleration vectors:

Mathematically position X , velocity V and acceleration A are:

$\frac{dX}{dt} = V$ and $\frac{dV}{dt} = A$

Where X, V, A are vectors and $\frac{d(a)}{dt} = b$ indicates the derivate a of a time is equal to b.

So, this show that acceleration is a rate respect of time of velocity ⇒ When acceleration is positive, velocity increments, when acceleration is negative, velocity decrements.

<em>The above explanation correspond to the motion map shown, getting demonstrated that the answer is D - Negative acceleration </em>

3 0

3 years ago