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2 years ago

A car of mass 1200 kg, moving with a speed of 72 mph on a highway,

Physics

1 answer:

Keith_Richards [23]2 years ago

8 0

momentum(p) = mass(m) x velocity(v)

KE = kinetic energy = 1/2 mv²

the ratio of the momentum of the SUV to that of the car

$\tt \dfrac{mv}{1.5m\dfrac{2}{3}v }=1:1$

b. the ratio of the KE of the SUV to that of the car

$\tt \dfrac{1/2\times mv^2}{1/2\times 1.5m\times (\dfrac{2}{3}v )^2}=\dfrac{mv^2}{1.5m\dfrac{4}{6}v^2 }=1:1$

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3 years ago

Five identical quintuplets leave earth when they reach the age of 21, in the year 2121. Each quintuplet goes on a spaceship jour

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Answer:

Explanation:

This is a problem based on time dilation , a theory given by Albert Einstein .

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C ) Given t = 10 years , t₁ = ? v = .8c

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