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Inga [223]
3 years ago
10

Hi, I have a question if I calculate the average force that must be exerted on a 0.145 kg baseball for me to give it an accelera

tion of 130 m/s2. How would I get I get the acceleration would I divide 130 by 0.145 kg to get the acceleration?
​
Physics
1 answer:
faltersainse [42]3 years ago
7 0
Newton’s Second Law: Force = mass times acceleration.

F = 0.145 * 130

You would multiply to find the force required, not divide. Hope this helps!
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5 0
4 years ago
A 2.7-kg ball is thrown upward with an initial speed of 20.0 m/s from the edge of a 45.0 m high cliff. At the instant the ball i
scoray [572]

Answer:

The distance traveled by the woman is 34.1m

Explanation:

Given

The initial height of the cliff

yo = 45m final, positition y = 0m bottom of the cliff

y = yo + ut -1/2gt²

u = 20.0m/s initial speed

g = 9.80m/s²

0 = 45.0 + 20×t –1/2×9.8×t²

0 = 45 +20t –4.9t²

Solving quadratically or by using a calculator,

t = 5.69s and –1.61s byt time cannot be negative so t = 5.69s

So this is the total time it takes for the ball to reach the ground from the height it was thrown.

The distance traveled by the woman is

s = vt

Given the speed of the woman v = 6.00m/s

Therefore

s = 6.00×5.69 = 34.14m

Approximately 34.1m to 3 significant figures.

3 0
3 years ago
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NemiM [27]

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