Please write this on computer, not by hand Show clear, complete and organized pr

Question

Please write this on computer, not by hand

Show clear, complete and organized procedure

Solve the following problems:

1. You walk about 60 m at a speed of 1.05 m / s and then run about 62 m at a speed of 2.95 m / s. Determine the average speed of the total trip.

2. The table shows the positions of a car that is moving on a straight line:

a) Determine the displacement between positions A and F

b) Find the average speed between positions B and E

3. Starting from rest a car reaches a speed of 48 km / h in 3.2 seconds and 96 km / h in 8.4 seconds. Determine the average acceleration, in m / s2, during the time interval that it takes to increase from 0 to 48 km / h.

Explanation / Answer

1)t1=60/1.05

t2=62/2.95

Total time=t1+t2=78.15sec

verage speed=total distance/total time=1.56 m/s

a) Displacement=final position-initial position=-53-30=-83 m

(b)Average velocity=total displacement/total time=1.66 m/s

3)average acceleration=(final velocity-initial velocity)/time=13.33/3.2=4.2 m/s^2

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