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bezimeni [28]
3 years ago
5

A 5000kg truck has 400000J of Kinetic energy. How fast is it moving?

Physics
1 answer:
solong [7]3 years ago
7 0

Answer:

v = √160 m/s

v ≈ 12.65 m/s

Explanation:

KE = ½mv²

v = √(2KE/m)

v = √(2(400000)/5000)

v = √160 m/s

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Scorpion4ik [409]

The 3003 aluminum alloy is made up of 1.25% Magnesium and 0.1% Copper. This combination is designed to increase the strength of the material over other types of alloys such as those of the 1000 series. This alloy provides a medium strength and can be educated by cold work.

The alloy is not heat treatable and generally has good formability, corrosion resistance and weldability.

However, being a material that hardens by cold work, welding a 3003 Aluminum structure will cause the body to undergo recrystallization which will generate a loss in the 'resistance' of the material and the force capable of withstanding. If this aluminum will be used for structural purposes, it should not be welded. It would be better to perform the structure with a 6061 aluminum, which has similar characteristics and is not so affected by welding.

7 0
3 years ago
A vector has an x component of 24.0 units and the magnitude of the vector is 25 units. Find
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Answer:

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Explained solution is in the picture attached

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Montano1993 [528]

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3 years ago
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n200080 [17]

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The final velocity of the car is 0 m/s as it is brought to rest.

Impulse is equal to the product of constant force applied to an object for a very small interval. Impulse is also calculated as the total change in the linear momentum of an object during the given time interval.

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|J|=|p_f-p_i|

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The final momentum of the car is given as:

p_f=m(0)=0

Therefore, the impulse is given as:

|J|=|p_f-p_i|=|0-mv|=|-mv|=mv

Hence, the magnitude of the impulse applied to the car to bring it to rest is equal to the initial momentum of the car.

5 0
3 years ago
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The answer to the question is:

75m/s

Just do 25*3
4 0
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