It'll last 20 hours. If it travels 110 miles in one hours, 110 times 20 equals 2,200.
Answer:Same magnitude
Explanation:
When ball is dropped from shoulder height h then velocity at the bottom is given by

if it makes elastic collision then it will acquire the same velocity and riser up to the same height
If m is the mass of ball then impulse imparted is given by


Thus impulse imparted by gravity and Floor will have same magnitude of impulse but direction will be opposite to each other.
The use of drugs to treat disease is called medication
Medical movement for disabilities people