explain why a diver at the bottom of the sea feels more pressure than one who is swimming on the surface of water​

As you go more further down the water the pressure increases. The deeper diver goes the more water will be above them. Meaning, they will experience more pressure than person who is swimming at the surface water.

the deeper into the ocean you go, the more pressure is exerted on you

Explanation:

The velocity of the satellite will be 200 kmph.

Since the satellite is in deep space, and there is nothing to restrict the motion of the satellite (No atmosphere or no friction), therefore the stopping of engine will not affect the velocity of the satellite.

Therefore the velocity of the satellite after few minutes will be 200 kmph.