What change would increase the acceleration of the dog sled? (1 point) Responses remove a dog from the sled remove a dog from the sled add another dog to the sled add another dog to the sled run the sled up a hill run the sled up a hill add more mass to the sled add more mass to the sled Skip to navigation page 13 of 13
add another dog to the sled
Which object will accelerate more if the student exerts an equal amount of force on each object? (1 point) Responses 10 kg box 10 kg box two 10 kg boxes two 10 kg boxes Skip to navigation page 13 of 13
The change that would increase the acceleration of the dog sled is to add another dog to the sled.
To determine which change would increase the acceleration of the dog sled, we need to understand the concept of acceleration and what factors affect it.
Acceleration is the rate at which the speed of an object changes over time. In the case of the dog sled, we want to increase its acceleration, which means we want it to increase its speed at a faster rate.
There are a few factors that can affect the acceleration of a dog sled:
1. Removing a dog from the sled: When a dog is removed from the sled, the mass of the sled decreases. According to Newton's second law of motion, the acceleration of an object is directly proportional to the force applied to it and inversely proportional to its mass. Therefore, reducing the mass of the sled by removing a dog would increase its acceleration.
2. Adding another dog to the sled: Adding another dog to the sled would increase the total force applied to the sled. Since acceleration is directly proportional to the force, adding another dog would increase the sled's acceleration.
3. Running the sled up a hill: Running the sled up a hill increases the incline and introduces an upward force component. This leads to an increase in the net force on the sled, resulting in an increase in acceleration.
4. Adding more mass to the sled: Adding more mass to the sled would increase its overall mass. As previously mentioned, acceleration is inversely proportional to mass, so increasing the sled's mass would decrease its acceleration.
Considering these factors, the changes that would increase the acceleration of the dog sled are:
- Removing a dog from the sled
- Adding another dog to the sled
- Running the sled up a hill
Both removing a dog from the sled and adding another dog increase the net force applied to the sled, leading to an increase in acceleration. Running the sled up a hill increases the incline and introduces an additional upward force component, resulting in a higher net force and accelerated motion.
Adding more mass to the sled, on the other hand, would decrease the acceleration due to the increased mass.