A particle moving in a straight line covers half the distance with speed of 3 m/s. The other half of the distance is covered in two
equal time intervals with speed of 4.5 m/s and 7.5 m/s respectively. average speed of the particle during this motion is
So‘rovnoma
- 4.0 m/s
- 5.0 m/s
- 5.5 m/s
- 4.8 m/s