- #1
Meezus
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Homework Statement
A vehicle has a mass of 600 kg. Its engine provides a forward force of 1500 N, but the motion is resisted by a constant frictional force of 300 N.
Calculate a) the acceleration of the vehicle,
b) its momentum 6.0 s after starting to move.
Homework Equations
F=ma
a=f/m
Change in Moment = Force x Time.
The Attempt at a Solution
using a=f/m i can get acceleration easily.
1500 - 300 = 1200
1200 / 600 = 2.
a = 2 m/s^2
I think part B revolves around Change in Moment = Force x Time but I'm not sure as I can't see anyway to work it out using that formula but I'm unaware of another formula having time and monument in it.
Time = 6.
Force = 1200.
6 x 1200 = 7200?[/B]