Question

an object of mass m moves with a uniform speed v inside a plastic pipe bent at one end.the bent portion forms a circular arc of radius R. what is the resultant force on the object when it moves trough (a) the straight portion of the pipe ,(b) the bent portion of the pipe

Answer 1

when it passes through strsight portion it will be zero because force = m×a AND a is zero here
the motion in bent portion will be uniforn circular motion for dhort period of thime and acceleration will be zero hence know slso force will be zero.
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