Question

when a particle is projected at some angle to the horizontal it has a range R and time if flight t1.If the same particle is projected with the same speed at some other angle to have the same range its time of flight t2 is​

Answer 1

Answer:

Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate. In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force. However, if the object is already in motion, or if this situation is viewed from a moving inertial reference frame, that body might appear to speed up, slow down, or change direction depending on the direction of the force and the directions that the object and reference frame are moving relative to each other.