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natali 33 [55]
2 years ago
10

Alex rode her skateboard to the library. Her velocity changed from 3 m/s west

Social Studies
1 answer:
SVETLANKA909090 [29]2 years ago
5 0

Answer:

a = 0.5 m/s²

Explanation:

Given that,

Initial velocity, u = -3 m/s (west)

Final velocity, v = -1 m/s (west)

Time, t = 4 s

We need to find the acceleration of Alex. Acceleration of an object is the rate of change of velocity per unit time. So,

a=\dfrac{v-u}{t}\\\\a=\dfrac{\left(-1\right)-\left(-3\right)}{4}\\\\a=0.5\ m/s^2

So, her acceleration is 0.5 m/s². Hence, the correct option is (c).

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