Physics - Kinematics Question with Solution | TestHub

A cart is moving along +ve $x$-direction with a speed of $4\mathrm{m}/\mathrm{s}$. A person on the cart throws a stone with a velocity of $6\mathrm{m}/\mathrm{s}$ w.r.t. himself. In the frame of reference of the cart the stone is thrown in the $\mathrm{y}-\mathrm{z}$ plane making an angle of $30^{\circ }$ with the vertical z-axis. Then w.r.t. an observer on the ground :-