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ollegr [7]
4 years ago
9

A heavy 2.0Kg ball is moving at 10m/s when it is caught. A light 1.5Kilogram ball is travelling at 20m/s when it caught. Which b

all required the greater impulse? a) The 2.0kg ball because it is more massive. b) The 2.0kg ball because it had more momentum c) The 1.5kg ball because it was travelling faster d) The 1.5 kg ball because it is more momentum e) The question can’t be answered without more information.
Physics
2 answers:
Daniel [21]4 years ago
7 0

To check impulse you will need more information you will require more data as it was diverse with time. In this question, there are two balls with various mass and speed, along these lines they have diverse force. I will expect you are getting some information about the momentum.


The momentum of ball 1 should be:

momentum 1 = mass₁ x velocity₁

momentum 1 = 2kg x 10m/s = 20kg m/s


The momentum of ball 2 should be:

momentum 2= mass₂ x velocity₂

momentum 2= 1.5kg x 20 m/s = 30kg m/s


The answer would be "1.5kg ball because it was travelling faster".

kupik [55]4 years ago
6 0
The answer is d) The 1.5 kg ball because it has more momentum. 
Momentum = Impulse = Mass + Velocity
= 2 * 10 = 20 kg*m/s
= 1.5 * 20 = 30 kg*m/s
hence the 1.5 kg ball has greater momentum and impulse. 

Source: http://forumvu.com/Thread-GSC101-Assignment-1-Solution-Fall-2017
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6 0
3 years ago
One horsepower is a unit of power equal to 746 W. How much energy can a 150-horsepower engine transform in 10.0 s?
Lelu [443]

Answer:

E = 1119000\ joules

Explanation:

Given:

1\ Hp = 746\ watt

time (t = 10.0 sec)

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Solution:

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1\ Hp = 746\ watt

150\ Hp = 150\times 746\ watt

150\ Hp = 111900\ watt

So, power (p = 111900 watt)

We know that, if we multiply power by time, we get energy transform by engine.

P = \frac{E}{t}

E = P\times t\ joule  -----------(1)

Where:

P ⇒ power.

E ⇒ Energy.

t ⇒ time.

Substitute p = 111900 watt and t = 10 s in equation 1.

E = 111900\times 10

E = 1119000\ joules

Therefore, a 150 Hp engine could transform 1,119,000 joules energy  in 10 s.

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3 years ago
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lesantik [10]
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I just took this quiz, and can 100% confirm this is the answer.

Sorry this is late, but hopefully this can help future people who visit this question!



Hope this helps! :) 


7 0
3 years ago
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