Your 2000 kg Mercedes is accelerated from 10 m/s to 30 m/s in 4.75s. What is the average net force that you have applied to the car in that time interval? Givens are: mass= 2000 kg time= 4.75s acceleration=(Vf-Vi)/t= (30m/s-10m/s)/4.75s= 4.21m/s2 F=m*a= 2000kg*4.21m/s2= 8420 N Unidentified: FNet=? I'm completely stumped. Help is greatly appreciated!