NEET2011PhysicsMotion in Two DimensionsActual
A projectile is fired at an angle of 45^ with the horizontal. Elevation angle of the projectile at its highest point as seen from the point of projection is
Options
- A60^
- B⁻¹ ( 1 2 )
- C⁻¹ ( 3 2 )
- D45^
Correct answer
B. ⁻¹ ( 1 2 )
Step-by-step solution
Height of projectile aligned & H= u^2 ^2 2 g & H= u^2 ^2 45^ 2 g & H= u^2 4 g aligned Range of projectile aligned R & = u^2 2 g & = u^2 90^ g R & = u^2 g R 2 & = u^2 2 g & = H R / 2 aligned aligned & = u^2 / 4 g u^2 / 2 g & = 1 2 & = ⁻¹ ( 1 2 ) aligned