A particle is projected up the inclined such that its component of velocity along the incline is 20 m/s. Time of flight is 4 sec. Horizontal displacement of the particle in 4 sec is 64 m. The angle made by the incline with the horizontal is –
Text Solution
Verified by ExpertsThe correct answer is:
B
OA = 20 m/s × 4 s = 80 m
OB = 64 m
cos 
= 
= 
= 
= 37 0
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