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3 years ago

Hi pls help! i'll mark the correct answer brainliest :)

Physics

2 answers:

Allushta [10]3 years ago

8 0

Answer:

B hope this help! (sry if wrong)

Explanation:

solmaris [256]3 years ago

7 0

Pretty sure that it’s B

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A 20 g ball of clay traveling east at 4.5 m/s collides with a 45 g ball of clay traveling north at 2.0 m/s. You may want to revi

german

Answer:

The ball travels with a speed of 1.96 m/s in a North East direction

Explanation:

Based on the law of conservation of linear momentum, we have that

$m_{1}v_{1}+m_{2}v_{2}=(m_{1}+m_{2})v$

Since this problem involves motion in both the x and y coordinates, we will solve it in the separate coordinates, and then find the resultant as our answer.

Momentum in the x- direction

in the x direction, $v_{2}= 0$ . this makes $m_{2}v_{2}=0$

hence we have

$20\times4.5=65v_{x}$

$v_{x}=1.385m/s$

Momentum in the y- direction

in the y direction, $v_{1}= 0$ . this makes $m_{1}v_{1}=0$

hence we have

$45\times2.0=65v_{y}$

$v_{y}=1.385m/s$

The resultant of the two vectors can be found using Pythagoras' theorem

$v=\sqrt{1.385^{2}+1.385^{2}} =1.959$

The direction of the resultant vector is found as

$Tan^{-1}(\frac{1.385}{1.385})=45degrees$

Hence the ball moves with a velocity of 1.96m/s in a North East direction

7 0

3 years ago

Apakah yang dimaksud dengan gaya

tangare [24]

Nah gaya seperti titik fashion seperti apa yang Anda mana dan hal-hal seperti itu. (tell me if you cant understand)

8 0

3 years ago

Read 2 more answers

Earth Space Science:

Leya [2.2K]

The answer is C. Chemistry because it is fact based and has the characteristics of a real science.

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3 years ago

What is the nature of force between two charges if q1+q2=0

MAXImum [283]

Answer:
The force will be attractive.

Explanation:
Since we the sum of the charges is 0 they must have opposite charges and equal magnitudes.

And Opposite charges are attaractive towards each other.

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4 years ago

A bullet is dropped from the top of the Empire State Building while another bullet is fired downward from the same location. Neg

valentinak56 [21]

Answer:

9.8m/s

Explanation:

Each bullet is 9.8 meters per second per second.

6 0

4 years ago