Physics - NLM Question with Solution | TestHub

While waiting in a car at a signal, an$80 \mathrm{kg}$man and his car are suddenly accelerated to a speed of$5 \mathrm{m} {\mathrm{s}}^{-1}$due to a rear-end collision by another vehicle. If the time of impact is$0.4 \mathrm{s}$, the average force on the man is