The mass m moves at the velocity V and collides with the mass M. after the collision, the momentum of the mass m is equal to that of the mass M. the mass ratio m m m may be () A. 2B. 3C. 4D. 5

The mass m moves at the velocity V and collides with the mass M. after the collision, the momentum of the mass m is equal to that of the mass M. the mass ratio m m m may be () A. 2B. 3C. 4D. 5

According to the conservation of momentum and energy, if the momentum after collision is both P, the total momentum is 2p. According to the relationship between momentum and kinetic energy, P2 = 2mek. According to the relationship between energy, since kinetic energy does not increase, 4p22m ≥ p22m + p22m, mm ≤ 3, so a and B are correct, C and D are wrong. So AB is selected

The mass m moves at the velocity V and collides with the mass M. after the collision, the momentum of the mass m is equal to that of the mass M. the mass ratio m m m may be ()
A. 2B. 3C. 4D. 5

According to the conservation of momentum and energy, if the momentum after collision is both P, the total momentum is 2p. According to the relationship between momentum and kinetic energy, P2 = 2mek. According to the relationship between energy, since kinetic energy does not increase, 4p22m ≥ p22m + p22m, mm ≤ 3, so a and B are correct, C and D are wrong. So AB is selected

The mass m moves at the velocity V and collides with the mass M. after the collision, the momentum of the mass m is equal to that of the mass M. the mass ratio m m m may be ()
A. 2B. 3C. 4D. 5

According to the conservation of momentum and energy, if the momentum after collision is both P, the total momentum is 2p. According to the relationship between momentum and kinetic energy, P2 = 2mek. According to the relationship between energy, since kinetic energy does not increase, 4p22m ≥ p22m + p22m, mm ≤ 3, so a and B are correct, C and D are wrong. So AB is selected