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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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Option 2 is correct, the force points in the upwards direction.

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The magnetic force on any charge is given as the cross product of qv and B

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| î j k |

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F = i(0 - 0) - j(0 - 0) + k(qvB - 0)

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The force is in the z-direction.

We could also use the right hand rule; if we point the index finger east (direction of the velocity), the middle finger northwards (direction of the magnetic field), the thumb points in the upward direction (direction of the magnetic force). Hence, the magnetic force is acting upwards, in the positive z-direction too.

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they are closer!!

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