Calculate speed with Force/mass/Fg?

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In summary, To calculate speed using force, mass, and gravitational force, you can use the formula: speed = force / mass * gravitational force. The mass of an object directly affects its speed when using force and gravitational force. No, speed cannot be calculated using only force and gravitational force. The gravitational force acting on an object affects its speed by either increasing or decreasing it. The formula for calculating speed using force, mass, and gravitational force can be used in situations where gravity is the only force acting on the object.
  • #1
IniX
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1. Homework Statement :
Calculate the speed using just the given force (the force which moves forward), 5,0N
The mass 0,35kg
And the gravity: 2,94N How would this be done?
 
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  • #2
IniX said:
1. Homework Statement :
Calculate the speed using just the given force (the force which moves forward), 5,0N
The mass 0,35kg
And the gravity: 2,94N

How would this be done?

F = m*a

Determine the direction that gravity affects and then determine the overall acceleration.

The rest is just kinematics.
https://www.physicsforums.com/showpost.php?p=905663&postcount=2
 
  • #3


To calculate speed using force, mass, and gravity, we can use the formula v = √(2F/m - 2g), where v is the speed, F is the force, m is the mass, and g is the gravity.

Substituting the given values, we get v = √(2(5,0N)/0,35kg - 2(2,94N)) = √(28,57m/s^2 - 5,88m/s^2) = √22,69m/s^2 = 4,76m/s.

Therefore, the speed is 4.76 meters per second.
 

FAQ: Calculate speed with Force/mass/Fg?

How do you calculate speed using force, mass, and gravitational force?

To calculate speed using force, mass, and gravitational force, you can use the formula: speed = force / mass * gravitational force. This formula takes into account the force applied to an object, the mass of the object, and the gravitational force acting on the object.

How does the mass of an object affect its speed when using force and gravitational force?

The mass of an object directly affects its speed when using force and gravitational force. The greater the mass of an object, the more force is needed to accelerate it to a certain speed. This is because a larger mass has more inertia and requires more force to overcome it and increase its speed.

Can you calculate speed using only force and gravitational force?

No, speed cannot be calculated using only force and gravitational force. The mass of the object is also an important factor in determining speed. Without considering the mass, the speed calculation would not be accurate.

How does the gravitational force affect the speed of an object?

The gravitational force acting on an object affects its speed by either increasing or decreasing it. For example, if the gravitational force is pulling the object downwards, it will accelerate the object and increase its speed. On the other hand, if the gravitational force is acting against the motion of the object, it will slow down the object and decrease its speed.

Can you use this formula to calculate speed in any situation?

The formula for calculating speed using force, mass, and gravitational force can be used in situations where gravity is the only force acting on the object. In other situations where there are other forces involved, such as friction or air resistance, the formula would need to be modified to account for those forces.

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