Question

ANSWER = BRAINLIEST

A car moves in a circular path as it turns on a corner on a horizontal road.
The car moves at a constant speed.
Which description of the forces acting on the car is correct?

A. All the forces are balanced as the car is moving at a constant speed.
B. The forces are unbalanced and the resultant force acts away from the centre of the circle.
C. The forces are unbalanced and the resultant force acts towards the centre of the circle.
D. The forces are unbalanced and the resultant force is in the direction of travel of the car.

Answer 1

In a circular motion the centripetal force pulls the object toward the centre of the circle and keeps the object in it's path.

Although the speed is constant, VELOCITY is not (it change allow the path to be always tangencial to the circular path).

Hence, A is the right answer

Answer 2

Answer: C. The forces are unbalanced and the resultant force acts towards the centre of the circle.

Explanation: Even though the vehicle is moving at a constant speed, it still changes its velocity and, subsequently, has an acceleration.

The acceleration is directed towards the center in a circular path and, since Newton's law states that if the object has an acceleration, it is submitted to a net force, net force also points to the center of the central path. This force is the centripetal force.

According to the law of inertia, an object tends to stay in motion with the same speed and direction unless an outside force act upon it. In case of centripetal force, the unbalanced forces are acting upon the car in order for it to move in circles,

So, the unbalanced forces are acting on the car for it to turn and the resultant force (net force) is acting towards the centre of the circle as the acceleration.