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3-2.Motion in Plane
medium
A small block is shot into each of the four tracks as shown below. Each of the tracks rises to the same height. The speed with which the block enters the track is the same in all cases. At the highest point of the track, the normal reaction is maximum in
A
B
C
D
(IIT-2001)
Solution
(a) Normal reaction at the highest point
$R = \frac{{m{v^2}}}{r} – mg$
Reaction is inversely proportional to the radius of the curvature of path and radius is minimum for path depicted in $(a).$
$R = \frac{{m{v^2}}}{r} – mg$
Reaction is inversely proportional to the radius of the curvature of path and radius is minimum for path depicted in $(a).$
Standard 11
Physics
