Answer:
N = 55
Step-by-step explanation:
make use of Pythagoras theorem
which is :
c^2 = a^2 + b^2
where c is the hypotenuse
a is the adjacent
b is the opposite
c = 73
a = 48
b = N
now plug these in the formula
73^2 = 48^2 + N^2
now make N the subject of formula
73^2 - 48^2 = N^2
3025 = N^2
[tex]\sqrt{3025} \\[/tex] = N
N = 55 --- the murder was not done with a fallen object
