Question

(b) A person seating on the back seat of bike falls forward when brakes are
applied​

Answer 1

Answer:

because the person was in the state of motion or you can say the inertia of the person was in the motion state but when the brakes are applied then the bike came in the state of rest but the person sitting back was still in the state of motion

if you want more explanation the the should read the Newtown's laws of motion

1 law explains this question completely