A ball thrown at angle of @horizontal x-axis its time of flight is a 2S and R=100 m what is the horizontal component velocity ?find its cos @ g=10m/s?
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time of flight = 2 sec. = 2 u sin theta /g
u sin theta = 10 m/s = Initial vertical speed
Range = 100 m
Horizontal speed = range/ time of flight
= 100 / 2 = 50 m/s.
Initial velocity = sqrt (10^2+50^2)= 10 sqrt(26) m/s
Sin theta = 1/sqrt(26)
u sin theta = 10 m/s = Initial vertical speed
Range = 100 m
Horizontal speed = range/ time of flight
= 100 / 2 = 50 m/s.
Initial velocity = sqrt (10^2+50^2)= 10 sqrt(26) m/s
Sin theta = 1/sqrt(26)
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