contestada

You accelerate your 1500 Kg from 2 m/s to 12 m/s in 2 seconds. How do you determine
the cars acceleration initial momentum final momentum change in momentum the force required to do this?

Respuesta :

a = (vf-vi)/t = (12m/s-2m/s)/2s = 5m/s²

initial momentum = 150kg*2m/s = 300kgm/s

final momentum = 150kg*12m/s = 1800kgm/s

change in momentum = 1800kgm/s - 300kgm/s = 1500kgm/s

j = ft
f = j/t = 1500kgm/s / 2s = 750N