Question #05079

1 Answer
Dec 4, 2017

KE of mass 2= 1.2*10^-81.2108 J

Explanation:

Using conservation of momentum:
m1v1=m2v2

m1= 1.6 * 10^-251.61025 kg
m2= 2.4 * 10^-252.41025 kg

KE of m1=18*10^-918109 J =0.5m1v1^20.5m1v12
We can find v1=4.74*10^84.74108 m/s

m1v1=m2v2
v2=(m1v1)/(m2)m1v1m2
v2=3.16*10^83.16108 m/s

KE of m2=0.5m2v2^20.5m2v22=0.5*(2.4*10^-25)*((3.16*10^8)^2)0.5(2.41025)((3.16108)2)=1.2*10^-81.2108 J