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Oxana [17]
2 years ago
5

Inertia is a measure of

Physics
1 answer:
saw5 [17]2 years ago
7 0

Answer:

b.. a difficulty of changing an object's motion, that's my ✨ g u e s s ✨

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3 years ago
After falling from rest at a height of 28.7 m, a 0.502 kg ball rebounds upward, reaching a height of 19.8 m. If the contact betw
Ad libitum [116K]

Answer:

9080 N

Explanation:

Consider the two motions of the ball.

In the downward motion, initial velocity, <em>u</em>, is 0 (because it falls from rest) and the distance is 28.7 m. Using the equation of motion and using <em>g</em> as 9.8 m/s²,

<em>v² = u² + 2as</em>

<em>v² = </em>0² + 2 × 9.8 × 28.7<em> </em>= 562.52

<em>v = </em>19.7 m/s

<em />

For the downward motion, the initial velocity is unknown, the final velocity is 0 and initial velocity is desired. <em>g</em> is negative because the motion is upwars.

<em>0² = v² - </em>2 × 9.8 × 19.8

<em>v² = </em>388.08

<em>v = </em>10.7 m/s

The change in momentum = 0.502(10.7 -(23.7)) = 21.7868 kgm/s

The impulse = change in monetum

Ft = 21.7868 kgm/s

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[tex]F = \dfrac{21.7868}{2.4\times10{-3}} = 9078 \text{ N}[\tex]

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3 years ago
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