Question

Снаряд массой 8,7кг вылетает из орудия со скоростью 700м/с.Чему равна средняя сила давления пороховых газов , если время движения снаряда внутри ствола орудия принять равной 0,01с?

Answer 1

F=m*a=m*v/t=8.7*700/0.01=609 кН

Answer 2

Calculation of Average Pressure Force

To calculate the average pressure force exerted by the propellant gases on the projectile, we can use the formula:

Average Pressure Force = (Projectile Mass x Projectile Velocity) / Time of Travel

Given: - Projectile Mass = 8.7 kg - Projectile Velocity = 700 m/s - Time of Travel = 0.01 s

Using the given values in the formula, we can calculate the average pressure force:

Average Pressure Force = (8.7 kg x 700 m/s) / 0.01 s

Calculating the above expression gives us the average pressure force exerted by the propellant gases.

Let's calculate it:

Average Pressure Force = (8.7 kg x 700 m/s) / 0.01 s = 60,900 Newtons

Therefore, the average pressure force exerted by the propellant gases is 60,900 Newtons.

Please note that the above calculation assumes ideal conditions and does not take into account factors such as friction, air resistance, or other external forces that may affect the actual pressure force experienced by the projectile.