Question

solid sphere is rolling purely with speed v on horizontal surface. It rolls up an incline surface and stops at height h. Then height h is [g is the acceleration due to gravity]:

• A. $\frac{3 v^2}{10} g$
• B. $\frac{7 v^2}{10} g$
• C. $\frac{5v^2}{7} g$
• D. $\frac{7v^2}{5} g$

Answer 1

Answer: (B)

$\frac{7 v^2}{10} g$

Answer 2

The correct option is (B): $\frac{7 v^2}{10} g$