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3 years ago

A baby elephant is stuck in a mud hole. To help pull it out, game keepers use a rope to apply force A, as part

Physics

1 answer:

aniked [119]3 years ago

4 0

Answer:

The ratio is 1:1

Explanation:

Firstly we are told the in (a) we have a force which A given to be: FA

We are then told the are two other forces which a B and C which are equal.

These forces are given to be F and 19.5° away from A.

We are then told that the force on the elephant is now three times, of what it was when we only had force A.

Since we are told that B and C are eqaula.

If we say FA = 2N

Then in order for it to be three times, we would have to add 4N since it was the only force present at the time.

If we add two equal forces, then we can devide that 4 by 2.

We then find out that F =2N

and thus equal to FA.

Therefore the ratio of F/FA is

!:1

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What Is the acceleration of a toy car that starts from rest and has a speed of 0.12 m/s after 0.1?

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Given: Initial velocity of toy car (u ) = 0

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v = u + at ---------------------------(i)

Here, all alphabets are in their usual meanings

Now, from equation (i), we shall calculate the value of 'a'.

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Citrus2011 [14]

Answer:

$\theta = 66.7 degree$

Explanation:

since force is applied downwards at some angle with the horizontal

so here we will have

$F_n = mg + Fsin\theta$

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$Fcos\theta = \mu F_n$

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$cos\theta - \mu sin\theta > 0$

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