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Grade: 11
        
a projectile shot at an angle of 45 degree above the horizontal strikes a building 30 m away at point 15m above the point of projection.find the speed of projection.
2 years ago

Answers : (1)

noogler
489 Points
							
speed of projection is calculated by using     y=xtano – (g/2u2cos2o)x2
here y =15mts , x=30mts, o=450 , now find u
 
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2 years ago
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