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Oliga [24]
3 years ago
15

A dogsled team has a total momentum of 1710 kg•m/s. If the team has a total mass of 450 kg, what is its speed?

Physics
2 answers:
HACTEHA [7]3 years ago
7 0

Answer:

3.8 m/s

Explanation:

Momentum is the product of mass and velocity hence

Momentum=mv where m is mass and v is the velocity of an object

Making v the subject of the formula then

v=\frac {momentum}{m}

Substituting 1710 kgm/s for momentum and 450 Kg for mass we obtain

v=\frac {1710 Kgm/s}{450 Kg}=3.8 m/s

Hence the speed of dogsled team is 3.8 m/s

pshichka [43]3 years ago
5 0

Answer:

3.8 m/s

Explanation:

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Squids propel themselves by expelling water. They do this by keeping water in a cavity and then suddenly contracting the cavity
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Answer:

v_squid = - 2,286 m / s

Explanation:

This exercise can be solved using conservation of the moment, the system is made up of the squid plus the water inside, therefore the force to expel the water is an internal force and the moment is conserved.

Initial moment. Before expelling the water

          p₀ = 0

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Final moment. After expelling the water

         p_{f} = M V_squid + m v_water

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          0 = M V_squid + m v_water

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8 0
3 years ago
3.
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The force of gravity produces acceleration in all C. freely falling objects and this is known as acceleration due to gravity

Explanation:

A body is said to be in free fall when there is only one force acting on the body: the force of gravity.

Gravity is a force that acts downward, i.e. towards the Earth's centre.

If we are near the Earth's surface, the magnitude of the force of gravity on a body is given by

F=mg

where:

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g is known as the acceleration of gravity , whose value near the Earth's surface is 9.8 m/s^2).

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a=\frac{F}{m}

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Learn more about free fall here:

brainly.com/question/1748290

brainly.com/question/11042118

brainly.com/question/2455974

brainly.com/question/2607086

#LearnwithBrainly

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