Answer :
Jennifer is able to drag her brother out of the zoo due to an applied net force of 15 N.
What is force?
Force refers to any agent which tends to cause a change in the motion or state of an object.
Forces are of two types;
- contact forces, and
- Non-contact forces
The net force is the difference between two forces which causes a change in the motion of an object.
The net force that Jennifer applies = 35 N - 20 N = 15 N
Therefore, Jennifer is able to drag her brother out of the zoo due to an applied net force of 15 N.
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