3 years ago

Find the kinetic energy of a ball with a mass of 0.06 kg moving at 50 m/s

1 answer:

6 0

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TiliK225 [7]

Answer:

Explanation:

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3 years ago

Anon25 [30]

Answer:

t=7.33 s

Explanation:

According to Newton's second law:

$\sum F=m*a$

because we don't want the box to slide, the acceleration has to be zero.

$\sum F=-F_{friction}+F_{truck}=0\\F_{truck}=F_{friction}\\F_{friction}=\µ*m*g=0.500*9.81*m\\F_{friction}=4.91*m$

we know that:

$F=m*a\\4.91m=m*a\\a=4.91m/s^2$

Now having the acceleration, we can use the following formula.

$v_f=a*t\\t=\frac{36.0m/s}{4.91m/s^2}\\\\t=7.33s$

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3 years ago

Vsevolod [243]

Weight = Mass × Acceleration

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3 years ago

Leno4ka [110]

The answer is donate, therefore elements with positive valences usually donate electrons

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3 years ago

Nadya [2.5K]

Answer:

Your answer should be Cooled Air

Explanation:

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3 years ago