A car of mass 1130 kg moves with velocity 17.6 m\s then it collided with a tree and moved with uniform acceleration until it stopped through a distance of 0.77 m ,calculate the force affecting the car?

a car of mass 1130 kg moves with velocity 17.6 m\s then it collided with a tree and moved with uniform acceleration until it stopped through a distance of 0.77 m ,calculate the force affecting the car

1 Answer
Apr 14, 2018

#F=227, 291N#

nearest whole number

Explanation:

we are given

#u=17.6" "ms^(-1)#

#v=0" "ms^(-1)#

#s=0.77" "m#

mass #" "m=1130kg#

to find the acceleration

#v^2=u^2+2as#

#:.0=(17.6)^2+2axx0.77#

#0=309.76+1.54a#

#=>a=-309.76/1.54=-1408/7 " "ms^(-2)#

ie retardation

force on car

N2L

#F=ma=1130xx1408/7=227291N#

to the nearest whole number