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Ivahew [28]
3 years ago
15

A ball is thrown into the air at an angle. What is the instantaneous velocity of this ball in the vertical direction at the top

of its flight?
Physics
1 answer:
Margarita [4]3 years ago
3 0

Answer:

0 m/s

Explanation:

At the instant the ball reaches the top of its flight, it isn't moving up or down.  So the vertical component of the instantaneous velocity is 0 m/s.

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Which of these statements is false? Question 18 options:
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A bag of sugar weighs 3.50 lb on Earth. What would it weigh in newtons on the Moon, where the free-fall acceleration isone-sixth
Alex73 [517]

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F_{Earth}= 15.57 N

F_{Moon}= 2.60 N

F_{Uranus}= 16.98 N

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Explanation:

The weight of the sugar bag on Earth is:

g=9.81 m/s²

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F_{Earth}=m·g=1.59 kg×9.81 m/s²= 15.57 N

The weight of the sugar bag on the Moon is:

g=9.81 m/s²÷6= 1.635 m/s²

F_{Moon}=m·g=1.59 kg× 1.635 m/s²= 2.60 N

The weight of the sugar bag on the Uranus is:

g=9.81 m/s²×1.09=10.69 m/s²

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3 years ago
What is know as law of inertia? ​
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Explanation:

  • Law of inertia, also called Newton's first law, postulate in physics that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
  • Law of Inertia states that a body in a state of rest or uniform motion remains in the same state until and unless an external force acts on it.
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