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Aneli [31]
2 years ago
10

A ball thrown in to the air starts out with an initial upward velocity but eventually slows and stops before falling back to the

ground. Which of the following contributes the most to the change in the motion of the ball?Question 2 options: a) The initial force with which the ball was thrown b) The downward force of gravity c) The resistance against the atmosphere d) The increase of inertia.
Physics
1 answer:
Mashutka [201]2 years ago
8 0

Answer:

b) The downward force of gravity

Explanation:

The gravity force has the biggest influence on the deceleration of the ball because no matter how much force you applied on the ball, it will eventually go down again, according to newton's second law:

\sum F=m.a

right after you throw the ball, only the force exerted by the gravity will affect the ball (neglecting air resistance):

m.g=m.a\\a=g

so the object will eventually be going down again.

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In collision of the steel ball and the steel plate, the collision is an inelastic collision and there is loss in the kinetic energy.

<h3>What are collisions?</h3>

Collisions occur when two objects that are moving in the same directions or in different direction meet each other and collide.

There are two types of collisions:

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In the collision of the steel ball and the steel plate, there is loss in the kinetic energy of the steel ball which is converted to sound energy.

In conclusion, the collision of the steel and steel plate is an inelastic collision.

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   <span> The boiling point of water at sea level is 100 °C. At higher altitudes, the boiling point of water will be.....
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