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miv72 [106K]
3 years ago
10

What is the net force of a 25 g object with an acceleration of 3 m/s^2? 100PTS

Physics
2 answers:
gayaneshka [121]3 years ago
5 0

Explanation:

Force=Mass×acceleration

force=25×3

force=75N

sertanlavr [38]3 years ago
5 0

Answer:

0.75 N

Explanation:

F=ma

mass change to kg -> 25 g to 0.25 Kg

0.25x3 =0.75 N

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If an object has a kinetic energy of 30 j and mass of 34kg how fast is the object moving ?
cricket20 [7]

Ek = (m*V^2) / 2 where m is mass and V is speed, then we can take this equation and manipulate it a little to isolate the speed.

Ek = mv^2 / 2 — multiply both sides by 2

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2Ek / m = V^2 — switch sides

V^2 = 2Ek / m — plug in values

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A 69.5-kg person throws a 0.0475-kg snowball forward with a ground speed of 31.5 m/s. A second person, with a mass of 57.5 kg, c
Leno4ka [110]

Answer:

- After throwing the snow, velocity of the thrower is 2.33 m/s

- the velocity of the receiver is 0.026 m/s

Explanation:

Given the data in the question;

Using conservation of momentum,

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Now, When he throws it at 31.5 m/s, these constitutes a momentum of;

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161.94035 = 69.5 × v

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Therefore, After throwing the snow, velocity of the thrower is 2.33 m/s

Next is the Receiver;

the receiver will gain momentum of 1.49625 kg.m/s

he has no momentum initially and after he catches the snow ball;

1.49625 kg.m/s = mv

1.49625 kg.m/s = ( 57.5 kg +  0.0475 kg ) × v

1.49625 kg.m/s = 57.5475 kg × v

v = ( 1.49625 kg.m/s ) / 57.5475 kg

v = 0.026 m/s

Therefore, the velocity of the receiver is 0.026 m/s

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3 years ago
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Answer:

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Explanation:

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Answer:

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Explanation:

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