In,an,emergency,stop,to,avoid,an,accident,a,shoulderstrap,seat,belt,holds,a,60kg,passenger,firmly,in,place.If,the,car,were,initially,traveling,at,90km/h,andcame,to,a,complete,stop,in5.5s,along,a,straight,level,road,what,was,the,average,force,applied,to,the,passenger,by,the,seatbelt?

Answer 1

Now you are going to have to start doing these yourself. It is all force = mass * acceleration