Answer:
θ = 51.21°
Step-by-step explanation:
Vh= 193.6 km/h
Va= 141.7 km/hr
Relative velocity ,Vr= 193.6 - 141.7 = 51.9 km/hr
Time taken to cover 71.3 m


t= 3.81 s
t= 0.00105 hr
So the horizontal distance x
x= Vr .t
x= 51.9 x 0.00105 km
x=0.0549 m
x= 54.96 m
Lets take angle is θ
tan θ = h/x
tan θ = 71.3/54.96
θ = 51.21°