3 years ago

How do I find final velocity

Physics

1 answer:

svp [43]3 years ago

7 0

The formula for final velocity is Speed= distance/time (s=d/t)
Velocity is another word for speed.

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ludmilkaskok [199]

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Misha Larkins [42]

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Mary applies a force of 73 N to push a box with an acceleration of 0.48 m/s^2. When she increases the pushing force to 84 N, the

nikklg [1K]

Answer: $68.75\ kg, 0.06$

Explanation:

Mary applies a force of 73 N to create an acceleration of $0.48\ m/s^2$

When She increases force to 84 N, it creates an acceleration of $0.64\ m/s^2$

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$\Rightarrow 73-f=m\times 0.48\quad \ldots(i)\\\Rightarrow 84-f=m\times 0.64\quad \ldots(ii)$

Subtract (i) from (ii)

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Therefore friction is

$\Rightarrow f=73-68.75\times 0.48\\\Rightarrow f=73-33\\\Rightarrow f=40\ N$

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avanturin [10]

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