Which characteristic will be affected by increasing the speed of an object from 30 meters per second (m/s) to 40 meters per second (m/s)?

1. Gravitational attraction
2. Weight
3. Mass
4. Kinetic energy

4. Kinetic energy

Increasing the speed of an object from 30 meters per second (m/s) to 40 meters per second (m/s) will affect the kinetic energy of the object. Therefore, the characteristic that will be affected is:

4. Kinetic energy

The characteristic that will be affected by increasing the speed of an object from 30 meters per second (m/s) to 40 meters per second (m/s) is kinetic energy.

Explanation:
To determine this, we need to understand the relationship between speed and kinetic energy.

Kinetic energy is the energy possessed by an object due to its motion. It depends on the mass and speed of the object and is calculated using the formula:

Kinetic energy (KE) = 0.5 * mass * speed^2

Since the mass of the object is not changing, we only need to focus on the change in speed.

When the speed of an object increases, the kinetic energy increases as well. This is because kinetic energy is directly proportional to the square of the speed.

In this case, when the speed goes from 30 m/s to 40 m/s, the increase in speed will result in an increase in the kinetic energy of the object.

Therefore, the characteristic that will be affected by increasing the speed of the object is its kinetic energy.
The correct answer is 4. Kinetic energy.