How do i determine power generated be an applied force

In summary, to determine power generated by an applied force, first calculate the work done by multiplying the force with the distance. Then, divide the work by the time taken to push the box up the ramp. The resulting unit will be joules per second, or J/s.
  • #1
runicle
75
0
Does anyone know how to answer this question?

Question: How do i determine power generated by an applied force if it takes 9.0 s to push the box up the ramp.
I am given
mass=2.0kg
height of ramp= 2.7m
length of ramp= 5.3m
angle= 30*
constant force= 12N
What should i do I am stuck ! tell me what equation i should use. Please
 
Last edited:
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  • #2
First calculate the work done in pushing the box the distance you want.
W=Force * distance

then remember that power is simply work done divided by time.
 
  • #3
So basically i just divide the work by 9 seconds and i get j/s as its unit?
 
  • #4
runicle said:
So basically i just divide the work by 9 seconds and i get j/s as its unit?

J s^-1 are indeed the units of power :).
 

1. How do I calculate the power generated by an applied force?

To calculate the power generated by an applied force, you need to know the magnitude of the force and the velocity at which the force is applied. The formula for power is P = F * v, where P is power, F is force, and v is velocity. This formula assumes that the force is applied in the same direction as the motion.

2. What units are used to measure power?

Power is typically measured in watts (W) or horsepower (hp). One watt is equal to one joule per second, and one horsepower is equivalent to 746 watts.

3. Can power be negative?

Yes, power can be negative if the force is acting in the opposite direction of the motion. This means that the force is actually reducing the speed or slowing down the object.

4. How does the angle of the applied force affect power?

The angle of the applied force can affect the power generated. If the force is applied at an angle, the formula for power becomes P = F * v * cos(theta), where theta is the angle between the force and the direction of motion. This means that the power will be less than if the force was applied in the same direction as the motion.

5. How can I use power to compare different forces?

Power can be used to compare different forces by calculating the power generated by each force and comparing the results. The larger the power, the more work is being done by the force and the greater its ability to cause changes in an object's motion.

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