Why is there a negative sign in Newton's law of gravity?
a. force is a scaler quantity, and gravity is a repelling force
b. force is a scalar quantity, and gravity is an attractive force
c. force is a vector quantity, and gravity is a repelling force
d. force is a vector quantity, and gravity is an attractive force
d. force is a vector quantity, and gravity is an attractive force
In Newton's law of gravity, the negative sign is there because gravity is an attractive force. The negative sign indicates that the force of gravity acts in the opposite direction of the displacement or separation between two objects. This means that the force of gravity pulls objects towards each other, as opposed to pushing them apart.