The answers To your question is c
Objects in free fall, disregarding terminal velocity, accelerate at 9.8(m/s)/s. so for every second it was falling, it gained 9.8m/s in speed. 9.8 * 10 = 98m/s
It means you can do 550 Newton Meters of work every second. Power is the rate of doing work, I hope this helps
True. These are the characteristics of a social drinker.
Its false I got It right .