Two shells are fired by guns facing each other from points A and B simultaneously in the same vertical plane with velocities 60 m/s at 30° above the horizontal and 50 m/s respectively. The points A an

Question

Two shells are fired by guns facing each other from points A and B simultaneously in the same vertical plane with velocities 60 m/s at 30° above the horizontal and 50 m/s respectively. The points A and B are 100 m apart on horizontal ground. If both the shells hit each other, find the angel of projection at point B and time when they collide.

TestHub · Accepted Answer

For collision vertical velocity must be same. $60 sin 3 0^{\circ} = 50 sin θ \Rightarrow sin θ = \frac{3}{5} \Rightarrow θ = 3 7^{\circ}$ For horizontal motion : $(60 cos 3 0^{\circ} + 50 cos θ) t = 100 \Rightarrow t = (\frac{10}{4 + 3 3}) s$

Physics - Kinematics Question with Solution | TestHub

Options:(select one or more)

Doubts & Discussion