What is the force required to keep a 10kg model train moving in a circle of radius 10 m if the train has a linear speed of 0.5m/s

t.                 w               e                 n                   t                 y                 c             h               a           r           a               c                 t             e             r             s        

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.