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2 years ago

640 nanometer setara dengan

Physics

1 answer:

lidiya [134]2 years ago

7 0

Answer:

640 nanometer setara dengan 6.4e-7 meter

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An air track car with a mass of 6 kg and velocity of 4 m/s to the right collides with a 3 kg car moving to the left with a veloc

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Remember that moment before collision is equal to the moment after collision.

$(m1 \times u1) + (m2 \times u2) = (m1 \times v1) + (m2 \times u2)$

Plugging in our values,

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When driver see the child standing on road his speed is 20 m/s

So here at that instant his reaction time is 0.80 s

He will cover a total distance given by product of speed and time

$d_1 = v* t$

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$d_1 = 16 m$

now after this he will apply brakes with acceleration a = 7 m/s^2

so the distance covered before it stop is given by

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so the total distance covered by it

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3 years ago

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Lana71 [14]

Circumference C=2πr
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3 years ago

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________________________________________

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3 years ago

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640 nanometer setara dengan​

640 nanometer setara dengan