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To calculate for the force in a spring, we use Hooke's Law which relates force and the displacement of the spring. It is said that the force is directly proportional to the displacement. So, it will have the equation F = kx where k is a constant and it is the spring constant.
F = kx
F = 45 N/m (0.03)
F = 1.35 N
Answer:
The green car traveled a shorter distance, but the displacement of the cars was equal.
Explanation:
The formula without numbers is

do the initial velocity would be
8.1 m/s
and the acceleration would be
2.9 m/s^2