Answer:
Explanation:
Given
mass of object 
inclination 
initial velocity 
acceleration of block during upward motion
using relation
where 
v=0 because block stopped after moving distance s
If block stopped after s m then force acting on block is
friction force 
therefore block will slide back down to the bottom
In order to know how long it has been falling for you take the final velocity "49m/s" and divide it by the acceleration "9.8m/s" and get 5, since you have been using seconds in the calculations the answer is 5 seconds. (Fun fact, it is actually 9.82m/s per second since it accelerates and they rounded it down.)
Pulmonary Arteries: Blood vessels that carry deoxygenated blood from the heart to the lungs. Superior Vena Cava: A large vein that delivers deoxygenated blood from the upper body into the heart. Hope this helps
Answer:
I am happy with you the father said to his daughter
