A body is projected downwards at angle 30 to horijontal and velocity 9.8 from top oftower 29.4 m high how long it take befores strike ground

Question

Bejoi Mathew · Answer

initial vertical velocity= usin30 = 4.9m/s vertical distance traversed= 29.4m So, h=ut + 1/2gt 2 29.4=4.9*t +4.9t 2 on solving we get t 2 + t – 6 = 0 (on solving quadratic equation) t=3 seconds. THANK YOU (please note I have taken 9.8m/s 2 as accleration due to gravity for simplicity)

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A body is projected downwards at angle 30 to horijontal and velocity 9.8 from top oftower 29.4 m high how long it take befores strike ground

A body is projected downwards at angle 30 to horijontal and velocity 9.8 from top oftower 29.4 m high how long it take befores strike ground

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