Answer:
last option is the correct one
Answer:
same problem is here also bro i cannot find this plz help anyone
Answer:
c. 1600J
Explanation:
The loss in potential energy of the boy is given by:

where
m = 40 kg is the mass of the boy
g = 9.8 m/s^2 is the acceleration of gravity
is the total change in the height of the boy (4 metres + 2 cm due to the compression of the spring)
Substituting, we find

Answer:
i think 53 or 56
Explanation:
cause i cross multiplied and got that
Answer:
I don't think the information is complete