Homework 2 1 Dimensio... Johnson C. Smith Universi... X Smarthinking online T...
ID: 2002637 • Letter: H
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Homework 2 1 Dimensio... Johnson C. Smith Universi... X Smarthinking online T... X 3 ebassign net 313153 t/web/Student/Assignment-Responses/submit?dep a Search Po Most visited Completed work Getting Started CS Employee Email CS Google Docs BCS Google calendar CS Google sites BCS Student Email SU ombre Hair Extensions... American Horror Story b) Find its acceleration. Indicate the direction of the acceleration with the sign of you answer.) 0.793 m/ S Need Help? Read it Watch It Talk to a Tutor 8. -1 points SerPSE8 2.P029.W My Notes Ask Your Teacher The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of 5.90 m/s for 4.15 s, making straight skid marks 60.6 m long, all the way to the tree. With what speed does the car then strike the tree m/ S Need Help? Read it Watch It Talk to a Tutor Submit Answer Save Progress 9. C+ 3 points SerPSE8 2.P034. My Notes Ask Your Teacher A glider of length 10.4 cm moves on an air track with constant acceleration. A time interval of 0.623 s elapses between the moment when its front end passes a fixed point along the track and the moment when its back end passes this point. Next, a time interval of 1.47 s elapses between the moment when the back end of the glider passes point and the moment when the front end of the glider passes a second point E farther down the track. After that, an additional 0.458 s elapses until the back end of the glider passes pointExplanation / Answer
8) Given: accel: -5.90 m/s^2
time: 4.15 s
distance: 60.6 m
velocity final: ?
d = (vf)(t) - a(t)^2 / 2
60.6= (vf)(4.15) - 0.5(-5.90)(4.15)^2
60.6 = vf (4.15) + 50.806
vf (4.15) = 9.794
vf=2.36 m/s
Therefore the car hits the tree at a speed of approximately 2.36 m/h
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