Find Acceleration and velocity of vault or car(from rest). This is info from the movie Fast 5(Vault Heist).

Question

time = 15s

Vault ≈ 74,750 lb ≈ 33,903.03 kg
Car ≈ 1900 kg
Money in vault ≈ 4,900 kg
Estimate coefficient (tires & concrete) ≈ 1
Estimate coefficient (steel & vault) ≈ 0.57

Answer 1

I have not a clue what the problem is. What is the relationship of the vault to the car?

Answer 2

The cars (2 cars) are pulling a vault out of the wall of a police station. What is the acceleration and velocity from rest? This question comes from the vault heist scene in the movie Fast 5.

Answer 3

net force=mass*acceleration
Now the issue is what is net force: Net force=pulling force-friction
friction is easy to figure (m*mu*g)
so exactly what is the pulling force? Not given. Not known.