A car slows down from 95m/s to 50m/s in 3 seconds. What is its acceleration?

4.17

Explanation:

We started at 95 and went down to 50 in 3 seconds.

The change in volocity would be about -45 km

distance traveld maybe 60

And power around 83.9 kw

I might be wrong so im sorry if I am.

I have not done this in a while.

not too sure thinking all accelerations are pointed down

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =