On an alien planet, an object moving at 4.0 m/s on the horizontal ground comes to rest after traveling a distance of 10 m. if the coefficient of kinetic friction between the object and the surface is 0.20, what is the value of g on that planet?

So acceleration due to gravity is

Explanation:

We have given initial speed of the object u = 4 m/sec

As object finally comes to rest so final speed v = 0 m./sec

Distance traveled s = 10 m

From third equation of motion we know that

Coefficient of kinetic friction

We know that relation between acceleration and coefficient of kinetic friction

So acceleration due to gravity is