Question

(1-8 Man A sitting in a car moving with 54 km/hr observes another
man B in front of car crossing perpendicularly the road of width
15 min 3s :
(A) Speed of man B is 5 10 m/s
(B) Speed of man B is 5 ms-1
d
(C) Actual direction of motion of B is at an angle of tan-1
with direction of motion of car
(D) Actual direction of motion of B is at an angle of tan-(3)
with direction opposite to the direction of motion of car​

Answer 1

I don't think I think that I don't know how I think that