Answer:
As two
inclined planes have different inclinations, but same height, therefore,
velocity on reaching the bottom along two inclines is the same.
From \[\upsilon =u+at=0+at\]
\[t=\upsilon /a\]
Now, \[\upsilon \]is same and \[a\propto \sin \theta \] \[\therefore
\] \[t\propto \frac{1}{\sin \theta }\]
i.e. time taken will be smaller when the rolls down the
plane of higher inclination.
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