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Fiesta28 [93]
3 years ago
12

!!PLEASE ANSWER ASAP!!

Physics
2 answers:
galina1969 [7]3 years ago
8 0

A. elastic motion because that's the answer


bekas [8.4K]3 years ago
7 0

The given statement is an example of one form of energy is  being converted to another

Answer: Option D

<u>Explanation:</u>

A car is is stopped due to the application of brakes to bring it back to rest. This is an example of kinetic energy as work is done to stop the car. When brakes are applied, heat is produced due to the friction between the wheels and the brakeshoes which is an example of heat or thermal energy. Hence kinetic energy is transformed into thermal energy in this application.

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How do you calculate the magnitude of the resultant force of two
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Answer:

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. A 40.0-kg child standing on a frozen pond throws a 0.500-kg stone to the east with a speed of 5.00 m/s. Neglecting friction be
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Answer:

Explanation:

A 40kg child throw stone of 0.5kg

At a direction of 5m/s

Recoil can be calculated using recoil of a gun formula

m_1•v_1 + m_2•v_2

m_1•v_1 = -m_2•v_2

The negative sign show that the momentum of the boy is directed oppositely to that of the stone

m_1 Is mass of boy

v_1 is the recoil velocity of the boy

m_2 is mass of stone

v_2 is the velocity of stone

Then,

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40•v_1 = -0.5 × 5

40•v_1 = -2.5

v_1 = -2.5 / 40

v_1 = -0.0625 m/s

The recoil velocity of the boy is 0.0625 m/s

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