The speed of a bullet hitting the board is 600 m / s, and it takes 0.001 s to get out of the board. The speed of a bullet passing through the board is 100 m / s The speed of a bullet hitting the board is 600 m / s, and it takes 0.001 s to get out of the board. The speed of a bullet passing through the board is 100 m / s. suppose that the bullet is decelerating and the mass of the bullet is 20 g. calculate the resistance of the bullet passing through the board and the thickness of the board

The speed of a bullet hitting the board is 600 m / s, and it takes 0.001 s to get out of the board. The speed of a bullet passing through the board is 100 m / s The speed of a bullet hitting the board is 600 m / s, and it takes 0.001 s to get out of the board. The speed of a bullet passing through the board is 100 m / s. suppose that the bullet is decelerating and the mass of the bullet is 20 g. calculate the resistance of the bullet passing through the board and the thickness of the board

The solution of V ^ 2-v0 ^ 2 = 2As - F = ma (Niu 2) v = V0 + at is s = 0.35m, f = 10000n