Задача 10129.

In a "railgun", or electromagnetic cannon, the projectile is accelerated by a magnetic field. What should be the length of the acceleration section of the "railgun" for the projectile to accelerate to a speed of v = 8 km / s in t = 0.01 s? Considering the force of the magnetic impact on the projectile to be constant, determine how many times it exceeds the mass of the projectile on the Earth´s surface.

Detailed solution with a short recording of the conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.