Question

does anyone know: A vehicle parked on a slope, of inclination 20 degrees. The weight of the vehicle acts as a downward force of 10,000N.
Find out: what is the magnitude of the resistance force the brakes must be exerting to prevent the vehicle moving down the slope.

Answer 1

to prevent the vehicle moving down the slope, you have to make sure that \[\sum_{}^{}Fx=0\]
and \[\sum_{}^{}Fy=0\]

Answer 2

Set up the usual coordinate system with horizontal axis parallel to incline surface

Answer 3

\[\sum_{}^{}Fx = 0 = 10000 \sin 20^{0} - fr\]
fr= resistance force from the brakes
so \[fr=10000\sin 20^{o}\]

Answer 4

ohh thankyou
i understand :)

Answer 5

you're welcome