Question

Calculate the time required for a 6000.-newton net force to stop a 1200.-kilogram car initially

traveling at 10. meters per second. [Show all work, including the equation and substitution with
units.]

Answer 1

Using the Definition of Impulse, we have:


`\Delta Q=\Delta I \\ mv=F\Delta t \\ 12*10^2*10*kg*m/s=6*10^3*\Delta t *N \\ \Delta t= (12*10^3)/(6*10^3) (kg*m)/(s* (kg*m)/(s^2) ) \\ \boxed {\Delta t= 2s}`

If you notice any mistake in my english, please let me know, because i am not native.