WorkEnergyPower_Train_Physics

Erratum :the 

Constant Speed is 29 m/s

Solution

Acceleration :[(Final Vel-Initial Velocity)/Time Taken]

=29-0/60

=0.48 m/s2

(ii)Resultant Force = 0 N

b)(i) Power = Work Done / Time Taken 

7.5x 10^5 x 0.4m/s2  

300 000N