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question 11
what is the net force acting on a 0.5 kg air - track glider that is traveling at a constant velocity of 4 m/s.
2 n
5.0 n
zero n
8 n
4.5 n

Explanation:

Step1: Recall Newton's first law

According to Newton's first - law of motion, an object moving at a constant velocity has no acceleration ($a = 0$).

Step2: Apply Newton's second law

Newton's second law is $F_{net}=ma$, where $m$ is mass and $a$ is acceleration. Since $a = 0$ and $m=0.5$ kg, then $F_{net}=0.5\times0 = 0$ N.

Answer:

Zero N