An 80-kg firefighter slides down a fire pole. After 1.3 seconds of sliding, the firefighter is sliding at a velocity of 6.5 m/s,
1 answer:
Answer:
a= 0
Explanation:
- In the vertical direction, if the friction force (directed upward) is equal to the force of gravity (downward) this means that no net force is acting on the firefighter.
- According to Newton's 2nd Law, if no net force is present, the acceleration in this direction is just zero, as follows:
⇒ a = 0
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