GMC 2005 Savana Van Owner's Manual page 45

CAUTION:
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People should never hold a baby in their arms
while riding in a vehicle. A baby does not
weigh much – until a crash. During a crash a
baby will become so heavy it is not possible
to hold it. For example, in a crash at only
25 mph (40 km/h), a 12-lb. (5.5 kg) baby will
suddenly become a 240-lb. (110 kg) force on a
person's arms.
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