Ask Question
7 November, 10:34

a motorcycle begins at rest and accelerates uniformly at 7.9 m/s2. We want to find the time it takes the motorcycle to reach a speed of 100 km/h. Which kinetic formula would be most useful to solve for the target unknown?

+4
Answers (2)
  1. 7 November, 10:41
    0
    Answer:3.5 seconds

    Explanation:

    initial velocity=u=0

    Final velocity=v=100km/h

    Final velocity=v = (100x5) / 18=500/18=27.8 m/s

    Acceleration=a=7.9m/s^2

    t = (v-u) / a

    t = (27.8-0) / 7.9

    t=27.8/7.9

    t=3.5 seconds
  2. 7 November, 14:19
    0
    It takes the motorcycle about 12.65 seconds to reach 100mph
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “a motorcycle begins at rest and accelerates uniformly at 7.9 m/s2. We want to find the time it takes the motorcycle to reach a speed of 100 ...” in 📘 Physics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers