2. An object moves in the +x-direction under a constant acceleration. a. If an object is initially moving at a rate of 35 m/s and comes to a stop over a time of 7.00 seconds, what acceleration did the object undergo? b. At what time is the object's displacement equal to 15.0 m?

College Physics
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Chapter1: Units, Trigonometry. And Vectors
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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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c. What is the object's velocity 5 meters before it comes to rest?
d. What is the displacement of the object when its velocity is 12 m/s?
Transcribed Image Text:c. What is the object's velocity 5 meters before it comes to rest? d. What is the displacement of the object when its velocity is 12 m/s?
2. An object moves in the +x-direction under a constant acceleration.
a. If an object is initially moving at a rate of 35 m/s and comes to a stop over a time of
7.00 seconds, what acceleration did the object undergo?
b. At what time is the object's displacement equal to 15.0 m?
Transcribed Image Text:2. An object moves in the +x-direction under a constant acceleration. a. If an object is initially moving at a rate of 35 m/s and comes to a stop over a time of 7.00 seconds, what acceleration did the object undergo? b. At what time is the object's displacement equal to 15.0 m?
Expert Solution
Step 1: Equations of kinematics

“Since you have posted a question with multiple sub parts, we will provide the solution only to the first three sub parts as per our Q&A guidelines. Please repost the remaining sub parts separately.”

The equations of motion for uniformly accelerated motion are:

1. v equals u plus a t (relates initial velocity u, final velocity v, acceleration a, and time t)
2. s equals u t plus 1 half a t squared (relates initial velocity u, acceleration a, time t, and displacement s)
3. v squared equals u squared plus 2 a s (relates initial velocity u, final velocity v, acceleration a, and displacement s)


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