Answer:
-10m/s
Explanation:
only the magnitude of the velocity will change due to the change in direction of the car.
A. 1/9
Explanation:
The gravitational force between two objects is given by

where
G is the gravitational constant
m1 and m2 are the two masses
r is the distance between the two masses
From the formula, we see that the magnitude of the force is inversely proportional to the square of the distance: therefore, if the distance is tripled (increased by a factor 3), the magnitude of the force changes by a factor

John needs to see a physical therapist because he cannot walk very well.