Kinetic energy = 1/2 m (v^2)
you know the KE and the speed
(have to convert km/h into m/s)
find the "m" using the formula
The most massive of the shikansen are the series 200 trains, yet they are among the fastest. Series 200 trains can reach speeds of 275 km/h. If a 16-car series 200 trains has a maximum kinetic energy of 2.78 x 10^9 J, what is its mass?
2 answers
5.93 X 10^5 kg