Question

(a) Why is the net force on an object zero if the two forces acting on it in opposite directions are equal
(b) Why does the speed of tyre increase whenever it is pushed?​

Answer 1

Answer:

a. Equal forces acting in opposite directions are called balanced forces. Balanced forces acting on an object will not change the object's motion. When you add equal forces in opposite direction, the net force is zero

b. Speed of tyre increases when we push it because of the effect of the muscular force applied by our hands

Answer 2

Answer:

(a)Equal forces acting in opposite directions are called balanced forces. Balanced forces acting on an object will not change the object's motion. When you add equal forces in opposite direction, the net force is zero.

(b)Speed of tyre increases when we push it because of the effect of the muscular force applied by our hands.