问题:
[单选题]
A(1)θ2=23。48′,v2=0.2v0;(2)v1′=0.342v0,theta1′=46。58′(3)E=−0.327mv02
B(1)θ2=46。48′,v2=0.255v0;(2)v1′=0.342v0,θ1′=46。58′(3)E=−0.327mv02
C(1)θ2=23。48′,v2=0.155v0;(2)v1′=0.342v0,θ1′=46。58′(3)E=−0.327mv02
D(1)θ2=46。48′,v2=0.155v0;(2)v1′=0.342v0,θ1′=46。58′(3)E=−0.327mv02