User blog:Spinosaurus75DinosaurFan/Captain America Mjolnir Block Feat

Using an angular calculator the distance between Thor and Captain America is about 10 metres.

Thor's velocity is Mach 901.55.

Formula: Distance/Velocity

Time = 0.00003

For the distance Captain America raised his shield I'll go for 0.5 metres.

V = D/T = 0.5/0.00003 = Mach 49

High Hypersonic

With more training by CW he should be High Hypersonic+.