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3 years ago

What is the mass of a bowling ball if it has a weight of 80N?

Physics

2 answers:

Artist 52 [7]3 years ago

8 0

8.1577297 Kilograms :)

devlian [24]3 years ago

4 0

Answer:

8.1577297 kilograms

Explanation:

because its only 80N when your talking about different metric but if you wanted to know it in killograms there is your answer I hope this helps and can you please make me brainliest :)))

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3 years ago

Please help 25 points and brainliest

GREYUIT [131]

No. Terrance cannot move the sled. This is because, the force that he produces is 80*3 Newton’s, which is only 240 Newton’s, but since the sled needs a force of 250 Newton’s, he cannot move the sled (even though the difference is only by 10 Newton’s).

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3 years ago

Q. No. 9 A body falls freely from the top of a tower and during the last second of its fall, it falls through 25m. Find the heig

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Answer:

45.6m

Explanation:

The equation for the position y of an object in free fall is:

$y=-\frac{1}{2} gt^2+v_0t+y_0$

With the given values in the question the equation has one unknown v₀:

$v_0=\frac{y-y_0}{t}+\frac{1}{2}gt$

Solving for t=1:

1) $v_0=y-y_0+\frac{g}{2}$

To find the hight of the tower you can use the concept of energy conservation:

The energy of the body 1 sec before it hits the ground:

2) $E=\frac{1}{2}m{v_0}^2+mgy_0$

If h is the height of the tower, the energy on top of the tower:

3) $E=mgh$

Combining equation 2 and 3 and solving for h:

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Combining equation 1 and 4:

$h=\frac{{(y-y_0+\frac{g}{2}})^2}{2g}+y_0$

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3 years ago

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