Physics

Physics

Problem

A ball is projected with speed 20 m s−120\,\text{m s}^{-1} making an angle 30∘30^{\circ} with the horizontal. Take g=10 m s−2g = 10\,\text{m s}^{-2}. Find the total time of flight. a) 1 s1\,\text{s} b) 4 s4\,\text{s} c) 2 s2\,\text{s} d) 3.5 s3.5\,\text{s}

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