Recall the portion of the video in which the girl pushes her brother on the sled at constant velocity. The pushing force she exerts on the sled is the frictional force the ground exerts on the sled.

The pushing force she exerts on the sled is equal to the frictional force the ground exerts on the sled.

Explanation:

We have given that the brother of the girl is moving with a constant velocity. It means that the acceleration will be zero. Hence, the net force would be zero.

If the net force is zero, then the pushing force exerted on the sled will be equal to the frictional force that ground exerts to the sled.

So, both forces will be equal.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular