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3 years ago

The following force diagram represents Newton’s Third Law of Motion:

Physics

1 answer:

Julli [10]3 years ago

4 0

Answer:

FALSE.

Explanation:

Newton's third law states that :

Every action has equal and opposite reaction
That is , the magnitude is the same but the directions are opposite
The action reaction forces DONOT operate on the same body.

For example ,

If a block is kept on the ground , the action force is the normal force acting on it due to the ground. BUT , NOTE THAT : the reaction force isn't the gravitational force on the body ! It is the normal force acting on the ground due to the block !

Thus,

we conclude that action and reaction forces donot act on the same body and therefore , this case has the answer : FALSE

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Answer:

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Explanation:

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v = √ (0 - 2 9.8 (-0.79))

v = 3.935 m / s

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c) for this we use the relationship between momentum and the amount of movement

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vf = (I + m v₀) / m

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vf = ( 0 + 68 (3.935)) / 68

vf = 3.935 m / s

d) let's use kinematics

v₂ = v₀² - 2gy

0 = v₀² - 2gy

y = v₀² / 2g

y = 3.935²/2 9.8

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