Downvoted for basic physics problem. As small mass impacted by the force of a large mass, the acceleration force is proportionally multiplied. Momentum = mass *

Downvoted for basic physics problem. As small mass impacted by the force of a large mass, the acceleration force is proportionally multiplied. Momentum = mass * acceleration So acceleration = momentum / mass 10x mass Big truck hits go kart, go kart driver is accelerated 10x the speed of the truck. Whiplash, chance of impacting subsequent obstacles, etc. go up