Question

A stunt driver gives her car 3600 N to take a jump that has an angle of inclination of 31°. If she and the car together weigh 4700 N, what is the acceleration of the car? (Assume no friction.)

Answer 1

$mg=4700N$

$\Rightarrow m=\dfrac{4700}{9.8}=479.59$ kg

Balancing the forces along the plane,

$ma=F-4700sin31^{\omicron}$

$\Rightarrow a=\dfrac{3600}{479.59}-\dfrac{4700}{479.59}sin31^{\omicron}$

$\Rightarrow a=2.554m/s^2$