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3 years ago

According to legend, Galileo dropped two balls from the Tower of Pisa to see which would fall

Physics

1 answer:

Zanzabum3 years ago

7 0

Answer: 4.9 N

Explanation:

Weight $W$ is the force that gravity exerts on matter and changes depending on where the body is located. This means, the weight of an object on Earth will not be the same as the weight of the same object on the Moon or on Mars.

Well, in the case of Galileo, he performed his experiment on Earth. Hence, the acceleration due gravity is $g=9.8 m/s^{2}$ .

In addition, weight is mathematically expressed as:

$W=m.g$

Where $m=5 kg$ is the mass of the ball

Solving the equation:

$W=(5 kg)(9.8 m/s^{2})$

$W=4.9 N$ This is the weight of the ball

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2 years ago

A car with a velocity of 22 m/s is accelerated at a rate of 1.6m/s2 for 6.8s. determine the final velocity

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A car with a velocity of 22 m/s is accelerated at a rate of 1.6 $m/s^2$ for 6.8s has the final velocity t be 32.88 m/s.

The acceleration means the amount of velocity changing per unit time.

The given data:

initial velocity, u = 22 m/s

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The final velocity become 32.88 m/s.

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1 year ago

There are planets in the universe without a parent star. most all stars have planets. most stars are binary. true false

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