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4 years ago

A car has momentum, p=10880 kg m/s, east. If the car is traveling east at 16 m/s, its mass must be [m] kg.

Physics

2 answers:

GuDViN [60]4 years ago

6 0

<h3><u>Given</u> :</h3>

Momentum of car = 10880 kg m/s

Velocity of car = 16 m/s

We. have to find mass of the car $.$

<h3><u>Solution</u> :</h3>

★ Momentum of body is measured as the <u>product of mass and its velocity</u>.

It is a vector quantity having both <u>magnitude</u> as well as <u>direction</u>.

SI unit : kg m/s or N s

Formula : p = m × v

p denotes momentum
m denotes mass
v denotes velocity

★ <u>Calculation</u> :

⭆ p = m × v

⭆ 10880 = m × 16

⭆ m = 10880/16

⭆ m = 680 kg

∴ <u>Mass of the car = 680 kg</u>

<h3>Hope It Helps!</h3>

MaRussiya [10]4 years ago

5 0

Answer:

<h3>The answer is 67.5 kg</h3>

Explanation:

To find the mass of an object given it's momentum and velocity we use the formula

$m = \frac{p}{v} \\$

where

p is the momentum

v is the velocity

From the question

p = 1080 kgm/s

v = 16 m/s

We have

$m = \frac{1080}{16} = \frac{135}{2} \\$

We have the final answer as

Hope this helps you

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Option B is the correct answer.

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The x-component and y-component of the velocity of the cruise ship relative to the patrol boat is -5.29 m/s and 0.18 m/s.

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Given that,

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$v_{b_{y}}=v_{b}\sin\theta$

Put the value into the formula

$v_{b_{y}}=5.60\sin19$

$v_{b_{y}}=1.82\ m/s$

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For x component,

$v_{sb_{x}}=v_{s_{x}}-v_{b_{x}}$

Put the value into the formula

$v_{sb_{x}=0-5.29$

$v_{sb}_{x}=-5.29\ m/s$

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$v_{sb_{y}}=v_{s_{y}}-v_{b_{y}}$

Put the value into the formula

$v_{sb_{x}=2.-1.82$

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Answer:

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When you do what you have described, you are setting a stage that not even the USS Enterprise (Star Trek) can get out of. The increase is huge.

If you double m1 and m2 and don't do anything to r, you've already increased the force by 4 times. (2m1 * 2m2 = 4 * m1 * m2)

But you are not finished. If you 1/2 the distance, you are again increasing the Force by 4 times. 1 / (2r) ^2 = 1/ 4* r^2

Because this is in the denominator, the 1/4 is going to flip to the numerator.

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