C-02-Q045mediumsingle_mcq
If the change of position along a certain direction is 50 m in 20 s, the magnitude of velocity is —
If the change of position along a certain direction is 50 m in 20 s, the magnitude of velocity is —
- a1.0 m/s
- b2.5 m/s
- c5.0 m/s
- d25 m/s