KinematicsMedium
Question
On an inclined plane of inclination 30o, a ball is thrown at an angle of 60o with the horizontal from the foot of the incline with a velocity of 10 ms-1. If g = 10 ms-2, then the time in which ball will hit the inclined plane is -
Options
A.1 sec
B.6 sec
C.2 sec
D.4 sec
Solution
u = 10√3 m/s
Time of flight on the incline plane
T =
given α = 30o β & =30o & u = 10√3m/s
T =
so T = 2 sec.
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