How do you find the force needed to accelerate a 0.007 kg pellet from rest to 125 m/s over a distance of 0.8 m along the barrel?
2 Answers
Mar 24, 2018
The force is
Explanation:
Apply the equation of motion
The initial velocity is
The final velocity is
The distance is
The acceleration is
The mass of the pellet is
According to Newton's Second Law of Motion
The force is
Mar 24, 2018
Explanation:
Applying a motion equation:
Applying Newton's second law:
Again, that's valid assuming we have no other forces on the motion axis acted on the object whatsoever.