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slamgirl [31]
3 years ago
11

Correct unit of speed

Physics
2 answers:
cluponka [151]3 years ago
6 0

Explanation:

speed = distance /time

speed = m/s

wariber [46]3 years ago
5 0

Answer:

the unit of velocity can be m/s or ms-1. but they are the same

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You kick a ball with a speed of 14 m/s at an angle of 51°. How far away does the ball land?
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-- The vertical component of the ball's velocity is 14 sin(<span>51°) = 10.88 m/s

-- The acceleration of gravity is 9.8 m/s².

-- The ball rises for 10.88/9.8 seconds, then stops rising, and drops for the
same amount of time before it hits the ground.

-- Altogether, the ball is in the air for (2 x 10.88)/(9.8) = 2.22 seconds
==================================

-- The horizontal component of the ball's velocity is  14 cos(</span><span>51°) = 8.81 m/s

-- At this speed, it covers a horizontal distance of (8.81) x (2.22) = <em><u>19.56 meters</u></em>
before it hits the ground.


As usual when we're discussing this stuff, we completely ignore air resistance.
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Atomic radius<br><br>moving from left to right across a period,<br>​
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Answer:

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