Solved:
Answered by AI, Verified by Human Experts
Margy is trying to improve her cardio endurance by performing an exercise in which she alternates walking and running 100. 0 m each. If Margy is walking at 1. 4 m/s and accelerates at 0. 20 m/s2 during one of the running portions, what is her final velocity at the end of the 100. 0 m? Round your answer to the nearest tenth. M/s.
Margy is trying to improve her cardio endurance by performing an exercise in which she alternates walking and running 100. 0 m each. If Margy is walking at 1. 4 m/s and accelerates at 0. 20 m/s2 during one of the running portions, what is her final velocity at the end of the 100. 0 m? Round your answer to the nearest tenth. M/s.
To find Margy's finalvelocityat the end of the 100.0 m, we can use the equation of motion: v^2 = u^2 + 2aswhere:v = final velocityu = initial velocitya =accelerations = distanceGiven:u = 1.4 m/s (walking speed)a = 0.20 m/s^2 (acceleration)s = 100.0 m. Plugging in thevaluesinto the equation, we have: v^2 = (1.4 m/s)^2 + 2 * (0.20 m/s^2) * 100.0 m. v^2 = 1.96 m^2/s^2 + 40.0 m^2/s^2. v^2 = 41.96 m^2/s^2. Taking the square root of both sides to solve for v: v = √(41.96 m^2/s^2). v ≈ 6.5 m/s. Therefore, Margy's final velocity at the end of the 100.0 m is approximately 6.5 m/s.To learn more aboutvelocity,brainly.com/question/28608160#SPJ11...
Unlock full access for 72 hours, watch your grades skyrocket.
For just $0.99 cents, get access to the powerful quizwhiz chrome extension that automatically solves your homework using AI. Subscription renews at $5.99/week.