Question

Please answer this question

Answer 1

Explanation:

the the force required to to stop the vehicle is a product of mass and negative acceleration that is

F=m*a

Answer 2

Mass of vehicle = 1500 kg

The retardation required = -1.7 m s^-2

Force = mass * acceleration

Thus, the force between road and vehicle = 1500×−1.7=-2550 N

One thing worth noticing is that this is a friction force.