ayalewaw2006 ayalewaw2006 26-01-2021 Physics contestada 1. A car moves 20 m/s east for 5 sec, 10m/s north for 10 sec and then 30m/s west for 5 sec. Calculate a) displacementb) average velocity2. A cyclist ride his half journey at 10 m/s and the rest at 8 m/s. calculate his average speed.please help me. i will help back