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Lelechka [254]
3 years ago
11

Which of the following is the only requirement for an object to be in projectile motion? A. The horizontal and vertical motions

are independent. B. The path of the object follows the curve.C there must be no horizontal acceleration. D. Gravity is the only force acting on the object gravity is the only force acting on the object.
Physics
1 answer:
NARA [144]3 years ago
8 0
The answer is d, gravity is the only force acting on the object
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How high can a body vertically thrown with a speed of 40m/s raise after 3 sec (neglecting air
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y = 75.9 m

Explanation:

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If we put the origin of our coordinate system at the point where a body is launched, then y0 = 0.

y = -(1/2)(9.8 m/s^2)(3 s)^2 + (40 m/s)(3 s)

= -44.1 m + 120 m

= 75.9

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А A van accelerates from Amst to zomst in 8s. How far does it<br>travel in<br>this time?​
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3 years ago
Planets A and B have the same mass, but planet A is half the size of planet B.
pychu [463]

Answer:

c. You would weigh less on planet A because the distance between

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Explanation:

The statement that best describes your weight on each planet is that you would weigh less on planet A because the distance between you and the planet's center of gravity would be smaller.

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3 years ago
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When do we use v=2s/t and what does that equation mean?
djyliett [7]

Answer:

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Explanation:

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3 years ago
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v = 10 m/s

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Some is converted to potential energy

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As there is no friction mentioned, the remainder is kinetic energy

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KE = ½mv² + ½I(v/R)² = ½(m + I/R²)v²

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v = 10.07968...

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