[填空题]
A 95-m-long train begins uniform acceleration from rest. The 4u/ xnsujm;j4 ovh- j-6/cgm3 qw:quwf-dszna5l q6pp p z(82bront of the train has ap86zdz 2b(na - lspq5p speed of $40 \; m/s$ when it passes a railway worker who is standing 240 m from where the front of the train started. What will be the speed of the last car of the train as it passes the worker? $m/s$