Vertical Forces & Acceleration Video Lessons

Concept

Problem: A 300-kg bear grasping a vertical tree slides down at constant velocity. The friction force between the tree and the bear is A) 300 N.B) 3000 N.C) more than 3000 N.D) 30 N.

FREE Expert Solution

Acceleration and net force are related by Newton's second law. We'll apply Newton's second law to determine the net force.

Newton's second law:

$\overline{){\mathbf{\Sigma }}{\mathbf{F}}{\mathbf{=}}{\mathbf{m}}{\mathbf{a}}}$

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Problem Details

A 300-kg bear grasping a vertical tree slides down at constant velocity. The friction force between the tree and the bear is

A) 300 N.
B) 3000 N.
C) more than 3000 N.
D) 30 N.