Answer:
Explanation:
Assuming a frictionless car on a horizontal surface.
Kinematics answer
v² = u² + 2as
a = (v² - u²) / 2s
a = (0² - 15.0²) / (2(50.0)) = -2.25 m/s²
F = ma
F = 1580(2.25)
F = 3555 N
Work-Energy theorem answer
The work of the force must equal the initial kinetic energy of the car.
F(50.0) = ½(1580)15.0²
F = 3555 N
