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4 years ago

What is the momentum of A 200 kg shark swimming at 15 m/s? bruh please help im failing and dont understand this:)

Physics

1 answer:

igomit [66]4 years ago

8 0

Answer:

p = 3000 kg-m/s.

Explanation:

Given that,

Mass of shark, m = 200 kg

Speed of the shark, v = 15 m/s

We need to find the momentum of the shark. It can be calcullated as follows :

$p=200\ kg\times 15\ m/s\\\\p=3000\ kg-m/s$

So, the momentum of the shrak is 3000 kg-m/s.

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Answer:

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4 years ago

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astronauts in space cannot weigh themselves by standing on a bathroom scale. Instead, they determine their mass by oscillating o

devlian [24]

Answer:

The right answer is:

(a) 63.83 kg

(b) 0.725 m/s

Explanation:

The given query seems to be incomplete. Below is the attachment of the full question is attached.

The given values are:

T = 3 sec

k = 280 N/m

(a)

The mass of the string will be:

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or,

⇒ $m=\frac{k T^2}{4 \pi^2}$

On substituting the values, we get

⇒ $=\frac{280\times (3)^2}{4 \pi^2}$

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(b)

The speed of the string will be:

⇒ $\frac{1}{2}k(0.4)^2=\frac{1}{2}k(0.2)^2+\frac{1}{2}mv^2$

then,

⇒ $v=\sqrt{\frac{k((0.4)^2-(0.2)^2)}{m} }$

On substituting the values, we get

⇒ $=\sqrt{\frac{280\times ((0.4)^2-(0.2)^2)}{63.83} }$

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3 years ago

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SIZIF [17.4K]

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Explanation:

Given:

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Mass of swing,

= 18 kg

Length,

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T = $2 \pi \sqrt{4g}$

= $2 \pi \sqrt{\frac{4.9}{9.8} }$

= $4.443 \ sec$

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3 years ago

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densk [106]

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Given

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3 years ago

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Answer:

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T = 4 × $2^{2}$ × $65^{2}$ × 0.01

= 4 × 4 ×4225 × 0.01

= 676 N

Tension of the wire is 676 N.

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3 years ago