A train moves along a horizontal track at a steady velocity of 56 m/s. The train's mass is 440000 kg.
(a)[1]
State how the train's velocity differs from its speed.
(b)[2]
Calculate the kinetic energy of the moving train.
(c(i))[2]
Calculate the constant braking force needed to bring the train to rest.
(c(ii))[3]
Calculate the distance covered by the train before it stops.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “velocity is speed in a specified direction OR velocity includes direction OR velocity is 56 m/s in one direction OR velocity is a vector OR speed is a scalar” …