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Tresset [83]
3 years ago
12

A soccer player kicks a soccer ball with a force of 1.8 N. If the mass of the ball is .43 kg. How fast will the ball accelerate?

Physics
2 answers:
Vesnalui [34]3 years ago
4 0

Answer:

The acceleration of the ball is 4.18 [m/s^2]

Explanation:

By Newton's second law we can find the acceleration of the ball

F = m*a\\where:\\F = force applied [N] or [kg*m/s^2]\\m = mass of the ball [kg]\\a = acceleration [m/s^s]

Now we have:

a = F/m\\a = \frac{1.8 [kg*m/s^s]}{0.43[kg]} \\a = 4.18 [kg]

saw5 [17]3 years ago
3 0

Answer: The acceleration of the ball is a = 4.186m/s^2

Explanation: By the second Newton's Law we have that:

F = m*a

where F is force, m is mass and a is accleration.

In this case, we have F = 1.8N and m = 0.43kg, so we have to solve the equation:

1.8N = 0.43kg*a

a = 1.8N/0.43kg = 4.186m/s^2

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Answer:

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Explanation:

The kinetic energy of an object is given by:

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In this problem, the initial kinetic energy of the object is

K = 25 J

Then, the velocity is doubled, which means

v' = 2v

Therefore, the new kinetic energy will be

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K''=\frac{1}{2}m(3v)^2 = 9(\frac{1}{2}mv^2)=9K

Therefore, the kinetic energy has increased by a factor of 9:

K' = 9(25)=225 J

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3 years ago
The equation that is used to solve second law problems is # F= ma.
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