4. Let’s look the picture Old position Old position New position New position A B Can you tell me about rockets A and rockets B!
5. Let’s look the picture Old position Old position New position New position A B We can say, rocket A moving and B No ! Moving object is identified by its change of position from a certain point of reference
6. A change of position or displacement of an object from a certain point of reference is called MOTION
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14. Velocity Velocity is the change of position within a time interval If distance (d), time interval (t) and velocity (v), we can write formula of velocity
16. Velocity The unit of velocity can be determine by unit of distance divide by unit of time If unit of distance in SI is meter, time interval is second, and velocity is meter per second (m/s). In our daily life we usually use km/h
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20. Velocity Calculating the velocity Pada kenyataannya setiap object yang bergerak kecepatannya selalu berubah (baik arah maupun nilainya) Tidak mudah untuk memberikan contoh object yang bergerak dengan kecepatan tetap. Untuk menjelaskannya digunakan konsep average speed (kecepatan rata-rata)
21. Velocity Calculating the velocity Average speed is the total traveled distance divided by the time needed to travel that distance. v = average speed d = total distance t = time total
