Answer:
e
Explanation:
i took it myself and got it right
The force exerted by the child is 38.25 Newton
We use the formula F=mxa (m=mass and a= aceleration):
F= 45kg x 0,85 m/s2=38, 25 kgxm/s2= <em>38, 25 N</em>
511.545 Newtons
So 1 pound=4.44822 Newton’s so 115 times 4.44822 is 511.5453, then round it to get 511.545 Newtons.
(a) 6,000,000J
(b) 3,000,000J
(c) For A 20,000W
But for B 10,000W
