The first human made object made to orbit earth was the Soviet Union's Sputnik 1, it launched the 4th of October 1957.
Converting
releases
absorbs
cooling
transfer
liberating
Answer:

Explanation:
When we push the box from the bottom of the incline towards the top then by work energy theorem we can say that
Work done by all the forces = change in kinetic energy of the system

here we know that

also we know that the length of the incline is given as

now we have

so we have

<span>An imaginary line perpendicular to a reflecting surface is called "a normal" (principle line)
So, Your Answer would be Option B
Hope this helps!</span>