- #1
coltsamuel96
- 15
- 0
hello, can someone help me with this,
a wagon train of given mass collides with a passenger train at rest... the train loses 27% of kinetic energy after the collision... find the mass of the passenger train...
so what i did is, i put this formula for inelastic collision,v(final)= m1v1+m2v2/m1+m2... since v2 is in rest , m2=(m1v1/v(final))-m1... so my question is what will be the velocities before and after collision...i did, m2=(m1*1/.73)-m1...but i have a feeling that this is wrong... please help...
a wagon train of given mass collides with a passenger train at rest... the train loses 27% of kinetic energy after the collision... find the mass of the passenger train...
so what i did is, i put this formula for inelastic collision,v(final)= m1v1+m2v2/m1+m2... since v2 is in rest , m2=(m1v1/v(final))-m1... so my question is what will be the velocities before and after collision...i did, m2=(m1*1/.73)-m1...but i have a feeling that this is wrong... please help...