A train of weight, 3.7x106 N is moving at a speed of 40.8 m/s. Determine its Kinetic energy ?

1 Answer

Answer:

#314,24MJ#

Explanation:

#E_k=1/2mv^2#

#=1/2(W/g)v^2# here W is the weight of the train, so that we could calculate for its mass

inserting the variables,
#=1/2((3,7xx10^6)/(9,8))(40,8)^2#

#=314,24MJ#