A particle with speed V1= 75 m/s makes a glancing elasticcollision with another particle that initially is at rest. Bothparticles have the same mass. After the collision, the struckparticles moves off at an angle that is 45 degrees above the linealong V1. The second particle moves off at 45 degree below thisline. The speed of the struck particle after the colllision isapproximately.
A: 38 m/s
B: 82 m/s
C: 64 m/s
D: 47 m/s
E: 53 m/s