
Physics Investigatory Project Topics on Magnetism and Matter.Physics Investigatory Project Topics on Oscillations and Waves.Physics Investigatory Project Topics on Optics.Physics Investigatory Project Topics on Electromagnetic Induction.Physics Investigatory Project Topics on Current Electricity.Latest Physics Investigatory Project Class 12 CBSE Students.The player therefore sees it in line with a point ascending vertically from the batsman at constant speed. Even when the ball is really descending, near the end of its flight, its angle of elevation seen by the player continues to increase. The tangent of the angle of elevation is proportional to the time since the ball was sent into the air, usually by being struck with a bat.

If a projectile, such as a baseball or cricket ball, travels in a parabolic path, with negligible air resistance, and if a player is positioned so as to catch it as it descends, he sees its angle of elevation increasing continuously throughout its flight. (October 2017) ( Learn how and when to remove this template message) Unsourced material may be challenged and removed. Please help improve this section by adding citations to reliable sources.

In other words, the launch should be at the angle halfway between the target and the zenith.


Taking other forces into account, such as friction from aerodynamic drag or internal propulsion such as in a rocket, requires additional analysis. Because of the object’s inertia, no external horizontal force is needed to maintain the horizontal velocity component of the object. The only force of significance that acts on the object is gravity, which acts downward, thus imparting to the object a downward acceleration. The study of such motions is called ballistics, and such a trajectory is a ballistic trajectory. This curved path was shown by Galileo to be a parabola. Projectile motion is a form of motion experienced by an object or particle (a projectile) that is thrown near the Earth’s surface and moves along a curved path under the action of gravity only (in particular, the effects of air resistance are assumed to be negligible). Components of initial velocity of parabolic throwing
