22. On the surface of a certain planet, there is one unit of gravitational force exerted on every 0.4 units of mass.
The gravitational field strength on this planet has numerical value
A. 0.4
B. 2.5
C. 1.6
D. 1
C.1.6 is wrong
To find the numerical value of the gravitational field strength on the planet, we need to use the equation for gravitational field strength:
Gravitational field strength (g) = Force of gravity (F) / Mass (m)
According to the information given, there is one unit of gravitational force exerted on every 0.4 units of mass. So let's assume that the mass is M and the force of gravity is F.
Therefore, F = 1 and M = 0.4.
Now we can calculate the gravitational field strength:
g = F / M
g = 1 / 0.4
Dividing 1 by 0.4 gives us the value of 2.5.
Therefore, the correct answer is B. 2.5.