A person standing between two parallel hills fires a gun and hears the first echo after t_(1) sec and the second echo after t_(2) sec. The distance between the two hills is

A person standing between two parallel hills fires a gun and hears the

1.	A person standing between two parallel hills fires a gun and hears the first echo after t_(1) sec and the second echo after t_(2) sec. The distance between the two hills is
Answer» `(V(t_(1)-t_(2)))/(2)` `(v(t_(1)t_(2)))/(2(t_(1)+t_(2)))` `v(t_(1)+t_(2))` `(v)/(2)(t_(1)+t_(2))` Solution :Distance b/w MAN and hill 1, `d_(1)= (vt_(1))(2)` Distance b/w man and hill 2, `d_(2)= (vt_(2))(2)` Distance b/w the two hills, `d =d_(1)+ d_(2)` `d= (v(t_(1)+t_(2)))/(2)`