Physics - Kinematics Question with Solution | TestHub

The maximum speed of a boat in still water is $27\mathrm{km}/\mathrm{h}$. Now this boat is moving downstream in a river flowing at $9\mathrm{km}/\mathrm{h}$. A man in the boat throws a ball vertically upwards with speed of $10\mathrm{m}/\mathrm{s}$. Range of the ball as observed by an observer at rest on the river bank, is _______ cm. (Take $\mathrm{g}=10\mathrm{m}/{\mathrm{s}}^2$)