Asoft tennis ball is dropped onto a hard floor from a height of 2.50 m and rebounds back to a height of 2.15 m above the floor. gravity 10 m/s a). calculate its velocity just before it strikes the floor b). calculate its acceleration during contact with the floor if that contact lasts 2.50 ms c. how much time did the ball compress during its collision with the floor, assuming the floor is absolutely rigid? d). draw a detailed diagram of the situation 2+2+4+2 marks q6) suppose you first walk 18.5 m in a direction 28 west of north and then 25.7 m in a direction 44" south of west how far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? you must draw a vector diagram to represent the situation.