Question

If a cart is moving with uniform negative acceleration, what conclusion can be drawn about the forces acting on the cart?

A) There are no forces acting on the cart.
B) There is a constant net force acting on the cart in the direction of motion.
C) The cart is moving at a constant velocity.
D) There is a frictional force acting in the opposite direction of motion.

Answer 1

If a cart is moving with uniform negative acceleration, it indicates that there is a constant net force acting on the cart in the direction of motion. This net force is negative, indicating the presence of a frictional force acting in the opposite direction of motion.

Step-by-step explanation:

In the case of a cart moving with uniform negative acceleration, we can conclude that there is a constant net force acting on the cart in the direction of motion. This conclusion is based on Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting on it.

In this scenario, the net force is negative because the acceleration is negative. This implies that there is a frictional force acting in the opposite direction of the cart's motion. The negative acceleration indicates that the cart is slowing down.

It is important to note that even though the cart is moving with uniform negative acceleration, there are still forces acting on it. The negative acceleration means that the forces are causing a deceleration, rather than a constant velocity.