The fall of a body on the earth's surface cannot be a complete free fall why ?

Physics

1 answer:

leonid [27]3 years ago

3 0

Explanation:

because the boy has larger surface area due to which he offers the larger air resistance which decreases the acceleration so, he will fall towards the earth's surface approximately with constant velocity.

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Explanation:

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Galileo performed an experiment to measure the speed of light by timing how long it took light to travel from a lamp he was hold

krok68 [10]

Answer:

The time it takes light to cover 1.5 km was too short to be measured by Galileo's instruments.

Explanation:

The speed of light is $c=3*10^8m/s$ , which means the time it takes to cover a distance of 1.5 km (or 1,500m) will be

$t= \dfrac{1500m}{3*10^8m/s}$

$t= 0.000005s$

which is $\dfrac{1}{200000}$ of a second! This time delay could in no way be measured by Galileo considering the fact that he was using his heartbeat to measure time!