The answer is Nuclear Fusion. The sun emits energy by converting hydrogen into helium. Nuclear fusion does two things, it converts hydrogen into helium and it also converts mass to energy.
As we know that work done is defined as product of force and displacement
so here we will have

so here we know that

also we know that

now we will have



so it will have 27500 N force on it
Explanation:
iausiaolalalLosjjskskakOaokasksoososoapapozosiosoa
Answer:gravity and friction
Explanation:Gravity to keep yourself on the ground and friction to not slide when are walking.