Question

Which of the following safety features are used in vehicles to reduce the negative effects of inertia?

(i)Safety seat belts (ii)Automatic air bags (iii)Absorber bumpers

• A. Only (i) and (ii)
• B. Only (ii) and (iii)
• C. Only (i) and (iii)
• D. (i), (ii) and (iii)

Answer 1

The correct option is D (i), (ii) and (iii)

$Force=mass\times \frac{momentum}{time}$

since the effect of inertia depend on force if the time of impact is increased and hence the same force will produce less effect of inertia the safety seat belt,automatic air bag,Absorber bumpers produce the same effect to decrease the negative effect of inertia.