Question

Why jogging on the hard floor is risky than on the sand?

Answer 1

actually you are taking about the friction. as hard floor is made up of marble basically which has smooth surface so, we have to careful while taking step on it, on the other hand sand is a rough surface due to which friction become low hence friction becomes a necessary evil.

Answer 2

JOGGING ON THE HARD FLOOR IS RISKIER THAN ON THE SAND AS FLOOR HAS LESSER FRICTION THAN SAND