PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!

Physics

2 answers:

Vsevolod [243]4 years ago

8 0

Explanation :

Resultant of two vectors can be find out by adding two vectors together. We have two vectors $\underset{a}{\rightarrow}$ in up direction and $\underset{b}{\rightarrow}$ in right.

There resultant can be given by $\underset{R}{\rightarrow}$ , which is the sum of two vectors.

So, diagram (3) shows correct answer.

natka813 [3]4 years ago

5 0

Your answer lies in between Diagram 3 and Diagram 4. You would add the sum of the two vectors to get your resultant, in which your answer comes out to be Diagram 3. ♥

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FinnZ [79.3K]

The answer to this is c. High pressure causes plastic flow to occur.

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3 years ago

I need help on (a) I don't know what equation to use?

Alchen [17]

Impulse = (force) x (length of time the force lasts)

I see where you doodled (60)(40) over on the side, and you'll be delighted
to know that you're on the right track !

Here's the mind-blower, which I'll bet you never thought of:
On a force-time graph, impulse (also change in momentum)
is just the area that's added under the graph during some time !

From zero to 60, the impulse is just the area of that right triangle
under the graph. The base of the triangle is 60 seconds. The
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1/2 (base x height) = 1/2 (60s x 40N) = 1,200 newton-seconds

That's the impulse during the first 60 seconds. It's also the change in
the car's momentum during the first 60 seconds.

Momentum = (mass) x (speed)

If the car wasn't moving at all when the graph began, then its momentum is 1,200 newton-sec after 60 seconds. Through the convenience of the SI system of units, 1,200 newton-sec is exactly the same thing as 1,200 kg-m/s . The car's mass is 3 kg, so after 60 sec, you can write

Momentum = M x V = (3 kg) x (speed) = 1,200 kg-m/s

and the car's speed falls right out of that.

From 60to 120 sec, the change in momentum is the added area of that
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3 years ago

Formula for work done

Alenkinab [10]

Answer:

Work = Force × Distance

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hope this helps :)

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3 years ago

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garik1379 [7]

Answer:

Less powerful

Explanation:

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Have a great day!

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3 years ago

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nasty-shy [4]

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3 years ago