A 75 kg passenger in a van is wearing a seat belt whent he van moving at 15m/s, collides with a conrete wall. The front end of the van collapses 0.50 m as it comes to rest.

Question

A 75 kg passenger in a van is wearing a seat belt whent he van moving at 15m/s, collides with a conrete wall. The front end of the van collapses 0.50 m as it comes to rest. 
a) what was the paseenger's kinetic energy before the crash 
b) What average force did the seat belt exert on the passengfer during the crash?

bobpursley · Accepted Answer

KE= 1/2 mv^2 Force*distance= 1/2 mv^2 solve for force