Question

The angle of projection of a body is 15 . The other angle for which the range is the same as the first one is equal to

Answer 1

Answer:75

Explanation:

now the range of projection=$\frac{2usinx}{g}$

Hence for another angle to have the same range of projection

sine of the angle must be equal to sin2x in this case sin 30 which is 0.5

Hence the angle having the same sin as sin 30=sin150

Hence 2x=150

x=75

Answer 2

ro complementary range

the angle should be

complementary angles

if one is 15

the other should be 75°