Net Force Question with no velocity or time given.

In summary, a ball with a mass of 0.6 kg is moving through the air at a low speed, with negligible air resistance. The net force acting on the ball can be calculated using the equation Fnet = m(change in velocity/change in time), but this is not possible without knowing the change in velocity or time. However, since air resistance can be ignored, the only force acting on the ball is gravity, which has a value of -9.8 N. Therefore, the net force acting on the ball is -9.8 N.
  • #1
physco827
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[SOLVED] Net Force Question with no velocity or time given.

Homework Statement


A ball of mass 0.6 kg flies through the air at low speed, so that air resistance is negligible.

What is the net force acting on the ball while it is in motion?

Homework Equations


Fnet = m(change in velocity/change in time)

The Attempt at a Solution


Can't attempt because I don't know how to find the change in velocity or the change in time. They don't tell beginning time or ending time, the tell the weight, and neither the velocity. I know the vector will look like <0, y, 0> but I don't know how to calculate the y value.
 
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  • #2
You already know you can ignore air resistance. What other forces act on the ball?
 
  • #3
You have gravity acting on the ball as well, and that's it. The gravity is pulling the ball down in the y direction. Would it be gravity? Or the weight plus gravity?
 
  • #4
Is gravity -9.8 N? If it is then that should be the answer right?
 

1. What is the formula for calculating net force when velocity and time are not given?

There is no specific formula for calculating net force when velocity and time are not given. Net force is defined as the overall force acting on an object and is equal to the mass of the object multiplied by its acceleration. Without the values for velocity and time, it is not possible to calculate acceleration and therefore not possible to calculate net force.

2. How is net force affected by the absence of velocity and time?

In the absence of velocity and time, net force cannot be accurately calculated as it relies on the values of acceleration, which in turn depend on velocity and time. Without these values, it is not possible to determine the overall force acting on an object.

3. Can net force be zero if velocity and time are not given?

No, net force cannot be zero if velocity and time are not given. In order for net force to be zero, the forces acting on an object must be balanced. Without knowing the values of velocity and time, it is not possible to determine if the forces are balanced or not, and therefore not possible to determine if net force is zero.

4. How does the absence of velocity and time affect the accuracy of net force calculations?

The absence of velocity and time greatly affects the accuracy of net force calculations. Without these values, it is not possible to accurately calculate acceleration, which is a crucial component in determining net force. As a result, any calculations made without knowing velocity and time will be inaccurate.

5. Is it possible to determine the direction of net force without knowing velocity and time?

No, it is not possible to determine the direction of net force without knowing velocity and time. The direction of net force is dependent on the direction of acceleration, which cannot be determined without knowing velocity and time. Without this information, the direction of net force cannot be accurately determined.

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