What is the reading recorded by the pressure platform during this deceleration?
Take g=9.81 m s−2g = 9.81\text{ m s}^{-2}g=9.81 m s−2.
172 N172\text{ N}172 N
465 N465\text{ N}465 N
638 N638\text{ N}638 N
810 N810\text{ N}810 N
