Can someone help me out here? ASAP 1.
A student stands on a skateboard as the skateboard remains in place. When the student pushes his foot against the ground, the skateboard moves forward. The harder he pushes against the ground, the faster the skateboard moves. A friend jumps on for a ride, and the skateboard slows down. The student must push even harder to get the skateboard moving again. Once they get going, they hit a curb. The skateboard stops moving, but the students fly onto the grass. Fortunately, everyone is fine.

Describe three instances in the above paragraph where the skateboard was under the influence of unbalanced forces. For each instance, identify the primary forces involved, and explain why they were unbalanced.

Describe one instance in the above paragraph where the skateboard was under the influence of balanced forces. Identify the primary forces involved, and explain why they were balanced.