Question

an automobile vehicle has a mass of 1500 kg .what must be the force between the vehicle and road if the vehicle is to be stopped with a negative acceleration of 1.7 m/s-2​

Answer 1

Answer:

-2500n

Explanation:

Mass of vehicle= 1500kg.

retardation required= 1.7ms-2

Force between road and vehicle= 1500x -1.7 = -2500n

this is a friction force.

Answer 2

Given :-

m = 1500 kg

m = 1500 kg a = -1.7m/s $^{2}$

Final Answer :-

F = ma

F = ma = 1500 kg × -1.7m/s$^{2}$

= -2550 kg m/s $^{2}$

= -2550 N

Answer :-

-2500 N