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3 years ago

A car traveling at a constant speed travels 1000 feet in 12 seconds . In miles , how far will this car travel in 4 hours

Physics

1 answer:

aleksandrvk [35]3 years ago

3 0

227.27 miles;) this is because math works in mysterious ways lolololol

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The go-kart's velocity $v$ after time $t$ is given by

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$0\,\dfrac{\mathrm m}{\mathrm s}=v_0+\left(-0.5\,\dfrac{\mathrm m}{\mathrm s^2}\right)(5\,\mathrm s)\implies v_0=2.5\,\dfrac{\mathrm m}{\mathrm s}$

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A ball is thrown upward with an initial vertical velocity of v0 to a maximum height of hmax and falls back toward earth. on the

Vlad1618 [11]

Answer: $v_f=g\frac{t}{2}$

The ball was thrown at the speed of $v_o$ .

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Now, the time the ball takes to achieve maximum height = the time taken by ball to fall back = $\frac{t}{2}$

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Using the equation of motion:

$v_f=v_i+at$

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2 years ago

Two skaters stand facing each other. One skater's mass is 60 kg, and the other's

jeyben [28]

Answer:

v' = 2.4 m/s

Explanation:

Given that,

Mass of one skater, m = 60 kg

Mass of the other's skater, m' = 60 kg

The two skaters push off each other. After the push, the smaller skater has a velocity of 3.0 m/s.

When there is no external force acting on a system, the momentum remains conserved. It means initial momentum is equal to the final momentum. Let v' is the velocity of the larger skater.

mv = m'v'

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