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# Pak taufik(ayu)

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### Pak taufik(ayu)

1. 1. THE MATERY Fisika quantity for the motion with velocity and constant accelarationAYU IRMA KUSUMA WARDANI
2. 2. distance and displacementdistance is the total length of travel irrespective ofthe direction of motion.it is a scalar quantity. Displacement is distance moved in the particulardirection.displacement is a vector quantity. Theposition and direction of displacement of an objectare determined relatively from a point of reference.speed and velocityspeed is a scalar quantity,whereas velocity (v) isvector quantity.
3. 3. 1. average speed and average velocityaverage speed is the ratio between distance andthe time interval(t)needed to get thedistance.mathematically,it is written as follows.Average speed = distance/timeaverage velocity(v)is defined as the ratiobetween displacement.if average speedsymbolized v, distance that goed to symbolizeds, and time goes t, according to the similaritymathematical can be written:v = s/t
4. 4. 2. Instantaneous speed Instantaneous speed is the magnitude ofInstantaneous velocity. Instantaneous speed is ascalar quantity,whereas Instantaneous velocity isa vector quantity.v = lim v/t t0
5. 5. 3. avarage speedavarage speed a thing bases on big and transferdirection with a time that wanted.because horizontal is besaran vector, also belongvector quantity. The following:v=s/twhere:s = speed (meter)t = change (sekon)v = avarage speed (m/s)
6. 6. accelerationacceleration speed change everytime unit. acceleration can positivevaluable or negative. positivevaluable acceleration is calleddeceleration.a =v/t
7. 7. average accelerationaverage acceleration(a) is defined as the ratiobetween the change in velocity(v=v2-v1) and itstime interval(t=t2-t1).average acceleration =velocity change/timesa=v2-v1/t2-t1explanation:v = speed changet = time changea = average acceleration
8. 8. acceleration a momentacceleration a moment relate to bigand direction from speed a moment.acceleration speed change quotientwith time change. because speedbe vector quantity, acceleration amoment also belong vector quantity.
9. 9. to count acceleration a moment (a) frommovement a thing is wanted short meter, that isvalue? t approach zero. according toacceleration equation mathematical a moment(a) has reasoning equal to speed a moment thatcan be written as follows:a= lim ∆v/ ∆t ∆t  0explanation:a = acceleration a moment (m/s2) v = speed change (m/s) t = a time (s)
10. 10. Example1.an object moves straight to the rights andtakes a distance of 50 m in 12 s. then it turns tothe opposite direction and travels a distance of10 m on the seme parth in 3 s.what is (a) theaverage speed (b) the average velocity?2. a runner runs on a circular track with adiameter dof 200 m.determine the distance anddisplacement taken by the runner after he ranthree laps.