Physics · 2021
JEE Main · 4 August 2021, Shift 2 · Q25
A small solid spherical marble of mass M and radius 5 cm rolls along loop track without slipping. The height above the base, from where it has to…
A small solid spherical marble of mass M and radius $\displaystyle 5$ cm rolls along loop track without slipping. The height above the base, from where it has to start rolling down incline such that the sphere just completes the vertical circular loop of radius $\displaystyle 25$ cm is \_\_\_\_ cm. $\displaystyle \left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\right)$
Official answer
54
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