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Bumek [7]
3 years ago
6

A truck covers 40.0 m in 7.80 s while uniformly slowing down to a final velocity of 1.70 m/s. Please provide with explanation an

d correct answer.
Physics
1 answer:
Karolina [17]3 years ago
4 0

Answer:

a = -0.223 m/s

Explanation:

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Answer:

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Since it takes the armature 30 seconds to complete 60 cycles, and frequency f = number of cycles/ time = 60 cycles/ 30 s = 2 cycles/ s = 2 Hz

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The period, T = 1/f = 1/2 Hz = 0.5 s.

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Since it takes 0.5 s to complete 1 cycle, then the number of cycles it completes in 0.25 s is 0.25/0.5 = 0.5 cycles.

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