It’s an assortment of compound molecules
Answer:
(A) Velocity will be 1.88 m/sec
(b) Force will be 187.45 N
Explanation:
We have given work done = 4780 j
Distance d = 25.5 m
(A) Mass of the truck m = 
We know that kinetic energy is given by

So 
(B) We know that work done is given by
W = Fd
So 
Nuclear fusion, converts hydrogen atoms into helium
I think the answer is 30 but I’m not sure