Asked by gourav
A bock of mass 3kg starts from rest and slides down a surface , which corresponds to a quarter of a circle of 1.6m radius.
a) if the curved surface is smooth , calculate the speed of the of the block at the bottom.
a) if the curved surface is smooth , calculate the speed of the of the block at the bottom.
Answers
Answered by
MathMate
If the quarter circle has the radii horizontal and vertical, the difference in height equals the radius=1.6m.
Neglecting friction and other dissipative forces, then conservation of energy holds, and so
KE+PE=0,or
(1/2)mv^2 + mg(h-h0)=0
Solve for v
where h=0, h0=1.6m
and g=9.81 m/s²
Neglecting friction and other dissipative forces, then conservation of energy holds, and so
KE+PE=0,or
(1/2)mv^2 + mg(h-h0)=0
Solve for v
where h=0, h0=1.6m
and g=9.81 m/s²
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