A 30 kg occupant in a car has a chance of surviving a crash if the deceleration is not more than than 3 m/s. calculate the force on a 75 kg person decelerating at the same rate?

Question

anonymous · Answer

$$f=ma$$
$$30\times3 m/s^{2} $$$$f=90 n $$ deceleration power 
and i stopped here i dont even know if it was right !

anonymous · Answer

Isn't it just asking for the force experienced by a 75kg person experiencing acceleration of 3m/s^2?
$$\Large \begin{array}{l}
F = ma\
F = 75 \cdot 3 = {\rm{225N}}
\end{array}$$

anonymous · Answer

well if it's like this then it's simple