Asked by Anonymous
an object is projected with a velocity of 10m/s from the ground level at an angle to the vertically, the total time of flight of projectile os 10secs. calculate angle when (g=10m/s) show workings
Answers
Answered by
Damon
5 seconds up, 5 seconds down
do vertical problem first with Vi = initial velocity component up
v = Vi - g t
at top v = 0
0 = Vi - 10 t
but t = 5 seconds
so
Vi = 50 m/s
IF YOU LAUNCH AT 10 m/s, YOU CAN NOT STAY IN THE AIR TEN SECONDS!
do vertical problem first with Vi = initial velocity component up
v = Vi - g t
at top v = 0
0 = Vi - 10 t
but t = 5 seconds
so
Vi = 50 m/s
IF YOU LAUNCH AT 10 m/s, YOU CAN NOT STAY IN THE AIR TEN SECONDS!
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