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Natalka [10]
3 years ago
11

An airplane increases its speed from 100 m/s to 160 m/s, at the average rate of 15 m/s2. How much time does it take for the comp

lete increase in speed? 00577s O 40s O 0.25s O 17.3s
Physics
2 answers:
Vladimir [108]3 years ago
7 0

Answer: 4 s

Explanation: In order to solve this problem we have to use tge following kinematic expression:

vf=vo+a*t;  where vf and vo are the final and initial speed. a is the average acceleration and t,the time.

then we have:

t= (160-100) m/s/(15 m/s^2)= 4 s

Kipish [7]3 years ago
6 0

Answer:

4.0 s

Explanation:

Given data

Initial speed (V₀): 100 m/s

Final speed (vf): 160 m/s

Acceleration (a): 15 m/s²

Time (t): ?

In an uniformly accelerated motion, the acceleration is equal to the change in the speed divided by the time elapsed.

a = Δv/t

t = Δv/a = (vf - V₀)/a = (160 m/s - 100 m/s)/ (15m/s²) = 4.0 s

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