A record of travel along a straight path is as follows: 1. Start from rest with
ID: 2285074 • Letter: A
Question
A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.00 m/s^2 for 13.0 s. 2. Maintain a constant velocity for the next 2.60 min. 3. Apply a constant negative acceleration of -9.16 m/s^2 for 2.84 s. (a) What was the total displacement for the trip? Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. m (b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip? Leg 1 ______________differs from the correct answer by more than 10%. Double check your calculations. m/s leg 2 m/s leg 3 m/s complete trip m/s Enter 8 number.Explanation / Answer
here v = 0+ 2*13 = 26 m/s
Total displacement = ( ut+1/2 at2) + vt + ( vt - 1/2at2)
S = 169 + 67.6 + 36.89
S = 273.49 m
leg 1 = 169/13 = 13 m/s
leg 2 = 26 m/s
leg 3= 12.98 m/s
complete trip = 14.83 m/s