help me,please (1 Viewer)

[Sirius Black]

i was just doing revision and gotta lots of questions to ask

Ex1. a train travels at 10m/s around a bend shaped in the arc of a circle of radius 100m
a) Calculate the resualtant force acting on the train
b)Calculate the centripetal force acting on the train
in this case, are the resultant force and centripetal force the same?

thanks a lot

 

[McLake]

This might do better in the 4U Maths section, so I have moved it ...

 

[KeypadSDM]

If you moved it, it's clearly got to be alot harder than simply F = mv²r^-1

But I don't see it.

 

[Affinity]

part a probably wants you to derive the acceleration