1. An object object travels 24 meters in the +x direction for 3.9 seconds, and t

Question

1. An object object travels 24 meters in the +x direction for 3.9 seconds, and then immediately travels some distance in the -x direction. After a total time of 8.4 seconds, the object's average velocity is 0 m/s. What distance did the object travel in the -x direction?

2. An object object travels 21 meters in the +x direction for 2.2 seconds, and then immediately travels some distance in the -x direction. After a total time of 7.6 seconds, the object's average velocity is 0 m/s. What is the average velocity for the second part of the trip (traveling in the -x direction) in m/s? If in the negative x direction, indicate so with a negative sign.

3. An object object travels 38 meters in the +x direction, and then immediately travels some distance in the -x direction. When moving in the -x direction, its average speed is 3.5 m/s. How long does the object have to travel in the -x direction such that the displacement for the entire trip is 0 m? Answer in seconds.

Please show your work so I can understand thank you!

Explanation / Answer

1. Av speed= net displacement/time

0= total displacement

0= 24+x

X= -24 m

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2. Displacement for second trip,

x= -21

Av speed for second trip= -21/(7.6-2.2)= = - 3.89 m/s

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3. Time= distance /speed= 38/3.5= = 10.857 seconds

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Comment in case any doubt.. good luck

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