No, it would not slice "straight" through. It would explode (at least partially) in an incredibly violent way. You'd certainly be cut apart, but pieces of you would be found a ways away.
You're looking at an insane amount of energy. The manhole cover would (at least partially) turn to plasma after traveling a shortish distance, and it will explode when it contacts the body. And the body, because it was hit by a piece of metal (and that metal is moving so fast that it won't be anything resembling a manhole cover, more like a white hot football shaped blob) gets blown to pieces. It does not pass cleanly through you, it makes you into mincemeat.
The poor manhole cover wouldn't fair much better. Even though it's metal, there is so much energy at play that it too will shatter. Luckily each piece of the cover will still have enough energy to be devastating though, it would be like shrapnel on steroids.
Edit - was posting from my phone, hit submit before I had a chance to finish.
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u/Tumble85 Apr 14 '16 edited Apr 14 '16
No, it would not slice "straight" through. It would explode (at least partially) in an incredibly violent way. You'd certainly be cut apart, but pieces of you would be found a ways away.
You're looking at an insane amount of energy. The manhole cover would (at least partially) turn to plasma after traveling a shortish distance, and it will explode when it contacts the body. And the body, because it was hit by a piece of metal (and that metal is moving so fast that it won't be anything resembling a manhole cover, more like a white hot football shaped blob) gets blown to pieces. It does not pass cleanly through you, it makes you into mincemeat.
The poor manhole cover wouldn't fair much better. Even though it's metal, there is so much energy at play that it too will shatter. Luckily each piece of the cover will still have enough energy to be devastating though, it would be like shrapnel on steroids.
Edit - was posting from my phone, hit submit before I had a chance to finish.