A car with an unknown initial velocity accelerates over the course of 6.00 s to a velocity of 30.0 m/s, after which the car continues at a constant velocity for another 4.00 s.Part AVo =velocity (m/s)m/s??If the car travels a total distance of 294 m (in the entire 10.00 s interval) what was the initial velocity?0 1 2 3velocity vs time456time (seconds)7 8 91011

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Description: A car with an unknown initial velocity accelerates over the course of 6.00 s to a velocity of 30.0 m/s, after which the car continues at a constant velocity for another 4.00 s.Part AVo =velocity (m/s)m/s??If the car travels a total distance of 294 m

Given data The final velocity after 6 sec is given as v = 30 m/s. The total distance traveled is given as S = 294 m. the time interval is given as t = 6 s. Now, the distance traveled in the last 4 sec is calculated as, s2=vts2=30 m/s×4 ss2=120 m Now, the distance traveled during acceleration is calculated as, s1=S-s2s1=294 m-120 ms1=174 mNow, the according to the third equation of motion as, v2=u2+2as130 m/s2=u2+2×a×174 m...............(1) Now, according to the second equation as, s1=ut+12at2174 m=u×6+12×a×62a=2×174-6u62a=0.056174-6u Now, putting acceleration (a) in equation (1) is calculated as, 30 m/s2=u2+2×a×174 m900=u2+2×0.056×174-6u×1740=u2+2490.9-116.9uu=28.02 m/s Thus, the initial velocity is obtained as 28.02 m/s.

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A car with an unknown initial velocity accelerates over the course of 6.00 s to a velocity of 30.0 m/s, after which the car continues at a constant velocity for another 4.00 s. ▼ Part A velocity (m/s) 0 ? 2 1 If the car travels a total distance of 294 m (in the entire 10.00 s interval) what was the initial velocity? 2 3 velocity vs time 4 5 6 time (seconds) 7 8 9 10 11

A car with an unknown initial velocity accelerates over the course of 6.00 s to a velocity of 30.0 m/s, after which the car continues at a constant velocity for another 4.00 s. ▼ Part A velocity (m/s) 0 ? 2 1 If the car travels a total distance of 294 m (in the entire 10.00 s interval) what was the initial velocity? 2 3 velocity vs time 4 5 6 time (seconds) 7 8 9 10 11

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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