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stepladder [879]
3 years ago
13

A truck has a mass of 3000 kg and a velocity of 10 m/s. Calculate momentum!

Physics
2 answers:
BaLLatris [955]3 years ago
5 0

Given:-

  • Mass of the body (m) = 3000 kg
  • Velocity (v) = 10 m/s

To calculate: Momentum of the body.

We know,

p = mv

where,

  • p = Momentum,
  • m = Mass &
  • v = Velocity.

Thus,

p = (3000 kg)(10 m/s)

→ p = 30000 kg m/s (Ans.)

Evgen [1.6K]3 years ago
4 0

Answer:

\huge{ \boxed{ \sf{30000 \: kg \:  {m/s}^{2}}}}

Explanation:

\text{ \underline{ Given}} :

\star Mass of a truck ( m ) = 3000 kg

\star Velocity of a truck ( v ) = 10 m / s

<u>Finding</u><u> </u><u>the</u><u> </u><u>momentum</u> :

\boxed{ \sf{momentum \: ( \: p \: ) \:  =  \: mass \:   ∗ \:  \: velocity}}

\hookrightarrow{ \sf{momentum \: ( \: p \: ) \:  = 3000 \:  ∗ \: 10}}

\hookrightarrow{ \sf{ \: momentum \: ( \: p \: ) \:  = 30000 \: kg \: m/ {s}^{2} }}

Hope I helped!

Best wishes ! :D

~\sf{TheAnimeGirl}

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In one hour, coal supplies 500 000 J of energy. The energy amounts to 380 000 J. How much useful energy is produced in one hour?
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Answer:

120,000J

Corrected question;

In one hour, coal supplies 500 000 J of energy. The wasted energy amounts to 380 000 J. How much useful energy is produced in one hour?

Explanation:

Given;

Total energy Et = 500,000 J

Wasted Energy Ew = 380,000J

The amount useful energy is the amount of energy that is available for supply.

This can be derived by subtracting the wasted energy from the total energy.

Useful energy = Total Energy - wasted energy

Eu = Et - Ew

Substituting the given values;

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The amount of useful energy produced in one hour is 120,000 J

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3 years ago
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Answer:

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Explanation:

In the given question,

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Since the swimming pool is filled with water and atmosphere has air therefore the refractive index phenomenon will occur.

The refractive index of water: air is 4/3 (1.33).

Using the formula, 4/3 = real depth, apparent depth

real depth= 4/3 x apparent depth

Now, calculating apparent depth = 8 - 2

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therefore, real depth =  4/3 x apparent depth

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Answer:

ax = -3.29[m/s²]

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