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angryzeena
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Homework Statement
Homework Equations
Fn - T = ma
The Attempt at a Solution
Fn-T=ma
810kg x 2.5m/s2 - T = 810 kg x -2.5m/s2
T=0
The net force is the sum of all the applied forces. What are the applied forces?angryzeena said:sorry couldn't type subscript. It is the net force.
No, that is the only force of interest. (There is gravity and the normal force from the ground, but they cancel out.)angryzeena said:applied forces are:
-2025 kgm/s2 from the parachute
I have a feeling we are missing other applied forces.
You should ask yourself, if the tension in the parachute line is truly equal to zero, then why have the parachute attached to the dragster at all? What is the parachute doing?angryzeena said:ok so - tension is the force transmitted through the cord on the object. Force of gravity and normal upward force are equal so cancel out but we are trying figure out horizontal force not vertical force anyways.
We are lost...
angryzeena said:Homework Equations
Fn - T = ma
The Attempt at a Solution
Fn-T=ma
810kg x 2.5m/s2 - T = 810 kg x -2.5m/s2
T=0
How do you know it's incorrect?angryzeena said:exactly what we thought - T cannot be zero as it wouldn't be doing any work.
So then we thought T = net force on the object = ma = 810 kg x 2.5 m/s2 but that seems to be incorrect? Why?
Does it not match any of the offered answers? The choices are only specified to two significant digits, so round your answer accordingly and then compare. What do you get?angryzeena said:exactly what we thought - T cannot be zero as it wouldn't be doing any work.
So then we thought T = net force on the object = ma = 810 kg x 2.5 m/s2 but that seems to be incorrect? Why?
I didn't say it was not the net force. If it's the only force of interest then it is the net force.angryzeena said:haruspex said that was only the force of interest not the net force. Also 2025 N is not one of the options for an answer.
The tension in a parachute cord on a dragster is crucial for slowing down the dragster after it has reached high speeds during a race. It helps to create drag and reduce the speed of the vehicle to a safe and controlled stop.
The tension in a parachute cord on a dragster is typically measured in pounds or Newtons using a tension meter. This device measures the amount of force being applied to the cord and gives an accurate reading of the tension.
The tension in a parachute cord on a dragster can be affected by several factors, including the weight of the vehicle, the speed at which it is traveling, the length and thickness of the cord, and the design of the parachute itself. Other external factors such as wind and air resistance can also play a role in the tension.
Adjusting the tension in a parachute cord on a dragster can be done by changing the length and thickness of the cord, as well as the design of the parachute. These adjustments can be made through trial and error, with the goal of finding the optimal tension for the specific dragster and track conditions.
If the tension in a parachute cord on a dragster is too high, it can cause the dragster to slow down too quickly and potentially come to a sudden stop, which can be dangerous for the driver. If the tension is too low, the dragster may not slow down enough and could potentially run off the end of the track. It is important to find the right balance of tension for a safe and successful race.