What could be done INCREASE the acceleration on the dog sled?
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a
Add more mass to the sled.
b
Add another dog to the sled.
c
Run the sled up a hill.
d
Remove a dog from the sled.
To increase the acceleration of the dog sled, the most effective option would be:
b. Add another dog to the sled.
More dogs increase the total force exerted on the sled, which, according to Newton's second law (F = ma), will lead to a greater acceleration if the mass remains the same.
Other options and their effects:
a. Add more mass to the sled.
This typically decreases acceleration because the same amount of force now has to move more mass.
c. Run the sled up a hill.
This would not increase acceleration; in fact, it would likely decrease it due to gravity acting against the movement and the increase in potential energy that needs to be overcome.
d. Remove a dog from the sled.
This would likely decrease acceleration because you're reducing the total force available to propel the sled while the mass remains constant. However, if the sled were overloaded initially, reducing the number of dogs (if it means removing an unhealthy or weak dog) could theoretically improve the acceleration by optimizing the team's overall performance. But without context that the sled is overloaded, the general expectation is that removing a dog would reduce acceleration.