Category: Physics
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Equations of Motion
Expalin validitiy of equations of motion under constant acceleration only Derive equations of motion both numerically and graphically Explain the change in parameters of equation of motion under vertical motion influenced by gravity Equations of Motion
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A ball is projected from the ground with a speed of 25 m/s. Two seconds later it just clears a wall of height 5 m. Find a) the angle of projection b) the maximum height attained c) How far beyond the wall, the ball again hits the ground?
Solution: Given, Initial velocity of projection $\text{(u) = 25 m/s}$ In time $\text{t = 2 seconds}$, the ball clears a wall of height $\text{h = 5 m}$ Let us consider the acceleration due to gravity (g) be 10 m/s2 and $\theta$ be the angle of projection of the ball. We know, (a) For angle of…