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Juliette [100K]
3 years ago
11

9. An object starting with a velocity of 20m/s accelerates to

Physics
1 answer:
Aliun [14]3 years ago
4 0

Answer:

6.25 s

Explanation:

V=u+at

t= (v-u)/a

 = (45-20)/4 = 6.25 s

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A plastic rod 1.3 m long is rubbed all over with wool, and acquires a charge of -3e-08 coulombs. we choose the center of the rod
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