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I've seen a similar post like this on here, but I don't understand how they solved part (a), so id truly appreciate a more elaborate explanation for it. Im also confused on part (c). I appreciate any help. Thank you4. The equations below give the x component of position for four objects as functions of time: Object 1: x(t) -a, where a Object 2: x(t) - bt c, where b -4and c1m 5m . Object 3: (te+ft,where e -+5and f-9 Object 4: x(t) -gt2+h,where g --3 and h- +12m a. b. c. Which objects have a velocity that changes with time? Which object is at the origin at the earliest instant, and what is that instant? For the object found in part b, what is its velocity 1 s after it is at the origin?

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Answer #1

If x denotes the position then dx/dt denotes its velocity and d2x/dt2 denotes its acceleration.....

. and Se on with dime then the acceleration (ie d ol doje 3 halk a veloadly d大 ec . from dia rak @ , dle pantele 3 wok ơrgin at t-e so dhe velocity ofket @rj:小1

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