Question

plz solve this quickly​

Answer 1

Answer:

Explanation:

pot energy= mgh = 40 * 10 * 5

                           = 2000 joule

when halfway down

mgh/2= 1/2 mv²

1000= 1/2 * 40 v²

v=5√2  m/s

Answer 2

here's your answer friend.......