When an object moves in a circle at a constant speed, the net force toward the center of the circle is the centripetal force.
question 7 options:
true
false

True

Explanation:

If the object moves at constant speed then it means that the velocity changes instantaneously although the speed does not change. The change in velocity brings out acceleration and where there is a mass that undergoes acceleration there must be an external resultant force. this force is centripetal force.

When an object moves in a circle at a constant speed, the net force toward the centre of the circle is the centripetal force is true.

True

Explanation:

Transnational motion of objects is influenced by linear force  and uniform circular motion of objects is influenced by centripetal force. Any force has a direction since it is a vector.  Centripetal force is given by the equation

and its direction is towards the centre.

In this equation m denotes the mass of the object,  v is denotes its velocity and r denotes the radius of the circular path around which it moves.

Earth’s satellite, the moon revolves around the sun on its orbit due to the gravitational force of earth which is centripetal in this case.

c) up

hope this

3. dark matter

empty space could also be a simple vacuum