Prove that Force is equal to mass and acceleration

1 answer:

5 0

I mean F=ma states that mass and acceleration has an equal effect on force. So the forces you applied on 2 balls having different masses gave the same acceleration and the one with the greater mass had the greater force applied on it. Hence F is directly proportional to mass.

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An ice skater has a moment of inertia of 2.5 kg.m2 when her arms are extended and a moment of inertia of 1.2 kg.m2 when her arms

Damm [24]

Answer:

$\omega=4.7916\ rad.s^{-1}$

Explanation:

Given:

moment of inertia of the skater with extended arms, $I'=2.5\ kg.m^2$

moment of inertia of the the skater with pulled-in arms, $I=1.2\ kg.m^2$

angular velocity of the skater with extended arms, $\omega'=2.3\ rad.s^{-1}$

<u>Using the law of conservation of angular momentum:</u>

$I'.\omega'=I.\omega$

$2.5\times 2.3=1.2\times \omega$

$\omega=4.7916\ rad.s^{-1}$

6 0

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3 0

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valentina_108 [34]

Yes it will thats the same question I got

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Alexandra [31]

Answer:

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Explanation: