The dogsled in the image moves at a constant speed in a straight line. Which of the following is true?

Question

A team of dogs pulls a dogsled across level, snow-covered ground.

Source: Pi-Lens. Shutterstock

(1 point)
Responses

The forward pull of the dogs balances the backward pull of friction.
The forward pull of the dogs balances the backward pull of friction.

There is not enough information to answer the question.
There is not enough information to answer the question.

The backward pull of friction is smaller than the forward pull of the dogs.
The backward pull of friction is smaller than the forward pull of the dogs.

The backward pull of friction is larger than the forward pull of the dogs.

Answer 1

Since the dogsled moves at a constant speed in a straight line, according to Newton's first law of motion, the net force acting on it must be zero. This implies that the forward pull provided by the dogs must be equal to the backward pull of friction.

Therefore, the correct response is:

The forward pull of the dogs balances the backward pull of friction.