Question

section 4: unbalanced forces newton’s second law of motion describes the motion of objects acted on by unbalanced forces. forces are unbalanced when the total force acting on an object does not equal zero. this means that the object will accelerate in the direction in which the net force is acting and is proportional to the magnitude of the net force vector. a vector is a quantity that changes with both direction and magnitude. a scalar quantity is a quantity that is based only on magnitude section 5: acceleration the acceleration of an object (figure 11) is a measure of its change in motion and is defined as the rate at which the velocity of the object changes. segment 1: forces & motion scope 1: newton’s second law explain change of direction at constant speed is also acceleration, which does not happen without an unbalanced force. earth is always changing direction as it orbits the sun due to the force of gravitational attraction between the two celestial objects. a car racing around the oval of a racetrack at a constant speed is accelerating due to the constant change in direction. the applied force causes them to accelerate by changing direction. respond to the question in the box below: 4. define the term acceleration and give one example (other than car racing). acceleration is

Explanation:

Acceleration is defined as the rate at which the velocity of an object changes. This change can be in speed (increasing or decreasing) or in direction. An example is a satellite orbiting the Earth. The satellite moves at a relatively constant speed but is constantly changing direction due to the gravitational pull of the Earth, so it is accelerating.

Answer:

Acceleration is the rate at which the velocity of an object changes. Example: A satellite orbiting the Earth.