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Olenka [21]
3 years ago
9

An object of mass 30 kg is in free fall in a vacuum where there is no air resistance. Determine the acceleration of the object.

F= ?
Physics
1 answer:
velikii [3]3 years ago
7 0

Answer:

In free fall, mass is not relevant and there's no air resistance, so the acceleration the object is experimenting will be equal to the gravity exerted. If the object is falling on our planet, the value of gravity is approximately 9.81ms2 .

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Suppose a ball had a potential energy of 5 J when you dropped it.What would be it’s kinetic energy just as it hit the ground?
timama [110]

Answer:

Due to Conservation of Energy just as the ball hits the ground it's potential energy is assumed zero

Therefore disregarding air resistance all energy is converted into potential energy.

So KE = PE  

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An astronaut on Pluto attaches a small brass ball to a 1.00-m length of string and makes a simple pendulum. She times 10 complet
pickupchik [31]

Answer:

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Explanation:

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7 0
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What is an improvement of an invention ?
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4 0
3 years ago
What is the magnitude of the momentum of a 3400 kg airplane traveling at a speed of 450 miles per hour?
Vitek1552 [10]

Answer:

The magnitude of momentum of the airplane is 6.83\times 10^5\ kg-m/s.

Explanation:

Given that,

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or

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7 0
3 years ago
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kifflom [539]
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<span>A ball moving at a constant speed around a circular track produces acceleration. </span>
6 0
2 years ago
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