When two objects interact they exert forces on each other. Will these forces act in the same direction or in opposite directions?

it depends, if they are going the same way the forces will act in the same direction but they the two objects are going opposite directions then the forces will be in opposite directions

Explanation:

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.