Question

A 1-kg bomb initially at rest explodes into 1-kg and 2-kg fragments. If the kinetic energy of the 1-kg fragment is 600 J, then what is the kinetic energy of the 2-kg fragment?

Answer 1

From the conservation of linear momentum:
Pi=Pf
=>0=sqrt(2M1*K.E)+M2*V2=>0=sqrt(2*1*600)+2*V2
=>0=34.64+2*V2
therefore,V2=-34.64/2=-17.32 m/sec
hence kinetic energy of 2 Kg mass=1/2M2V2^2=1/2*2*(17.32)^2=299.98J(about)

Answer 2

Thanks! If you could take a look at my other questions too, I'd really appreciate it

Answer 3

what's your other question???