A car safety engineer is studying how airbags protect passengers during a frontal…
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum
Problem
A car safety engineer is studying how airbags protect passengers during a frontal collision.
(i) Define impulse and state its SI unit.
(ii) A passenger of mass 65 kg is brought to rest from an initial speed of 15 m/s during a crash. Explain, with suitable reasoning, how increasing the time over which the stopping force acts helps to reduce the magnitude of the force on the passenger. Support your explanation with an appropriate relationship between relevant physical quantities.