Recent content by zoezoehzoe

thank you very much for your help.

so Force = mass x acceleration, = ( 1350 kg ) x ( -7 m s-2 ), = -9450 kg m s-2 = 9450 N would be correct?

Homework Statement A car has a mass of 1350 kg and an initial speed of 21 m s-1. Calculate the magnitude of the unbalanced force applied to the brakes that caused the car to come to a halt in 3 seconds. Homework Equations Force = mass x acceleration, = ( 1350 kg ) x ( -7 m s-2 ), = -9450 kg...

Thank you both very much for your help :)

Hi, thank you for your reply. So if i were to write the answer as -3000 Newtons would that be correct? Or should it be 3000? Many thanks.

Homework Statement I am trying to find out if force in Newtons can be negative. If i know the magnitude of decelaration of a car ( a minus acceleration ) and i know the mass, do i multiply the - acceleration value by the mass, resulting in a minus value in Newtons, or do i multiply the...