Chevrolet 1997 Corvette Owner's Manual page 39

I
A
CAUTION:
Never hold a baby in your arms while riding in a
vehicle. A baby doesn't weigh much
--
until a
crash. During a crash a baby will become so
heavy you can't hold it. For example, in a crash
at only 25 mph (40 kmlh), a 12-1b. (5.5 kg) baby
will suddenly become a 240-1b. (110 kg) force on
your arms. The baby would be almost impossible
to hold.