Respuesta :
F=m•a(squared)
F=8,000•4(squared)
F=8,000•16
F=128,000
then divide by 2 which is
64,000 Joules
F=8,000•4(squared)
F=8,000•16
F=128,000
then divide by 2 which is
64,000 Joules
Sorry if i'm too late but i'm afraid Bubbletealuv's answer is incorrect.
If the cart had a mass of 8,000 kg and it was accelerating at a rate of 4 m/s2
Using the formula Force = mass * acceleration
The net force on the cart = 8000*4
= 32000 Newton