Answer:
-0.056 is the deceleration
It would be Atoms, they’re all made up of these tiny particles
Since the biker is moving at constant speed
so we will have

here we know that

time = 4 second
now we have

now at the top point it feels free fall
so it is




so height of the bike at the top is same as diameter


Yes it will hurt on falling from this height
Answer:
Because the light only spears to part of the water so it would appear less deep