The horizontal range of a projectile fired at an angle of 15^(@) is 50 m. If it is fired with the same used at angle of 45^(@), its range will be

The horizontal range of a projectile fired at an angle of 15^(@) is 50

1.	The horizontal range of a projectile fired at an angle of 15^(@) is 50 m. If it is fired with the same used at angle of 45^(@), its range will be
Answer» 125 m 75m 100 m 50 m Solution :Horizontal RANGE `R= (u^2 sin 2THETA)/(g)` If the equal speed `(R_1g)/(sin 2theta_1) = (R_2g)/(sin 2 theta_2)` `R_(2) = (2xx sin 90^@)/(sin 30^@) = 100 `m