defence exam Army Havildar SAC Mock Test Series 2025 Physics Motion in a Straight Line Average velocity and average speed
A person covers half of his journey at a speed of 40 m/sec and the other half at a speed of 50 m/sec. His average speed during the whole journey is about
1
15 m/sec
2
45 m/sec
3
75 m/sec
4
90 m/sec