Question

13th question ka 3rd aur 2nd part plz.
I have my exam tomorrow.

Answer 1

give

V = 90 m/s

K.E = 1/2 mV^2

K.E = 1/2 •900•8100
= 3645000 kg.m^2/s^2

sum of all force acting on car should be less than force acting by engine
F > 2000 + mg
F > 2000+ 900×9.8
F> 10820 N

hence
Power = F•V = 10820× 90
= 973800 Kg•m^2•s-3