Answer:
1317140.14091 J
Explanation:
h = Perpendicular distance of the car from the ground = 180sin18
g = Acceleration due to gravity = 9.81 m/s²
u = Initial velocity = 20 kmph
v = Final velocity = 65 kmph
The work done by the engine is given by
[tex]W=\dfrac{1}{2}m(v^2-u^2)+mgh\\\Rightarrow W=\dfrac{1}{2}\times 1900((\dfrac{65}{3.6})^2-(\dfrac{20}{3.6})^2)+1900\times 9.81\times 180sin18\\\Rightarrow W=1317140.14091\ J[/tex]
The work done by the engine is 1317140.14091 J
