An automobile and a truck start from rest simultaneously with the automobile some distance behind the truck. The truck as a constant acceleration of 2 m/s2 and the automobile has an acceleration of 3 m/s2. The automobile overtakes the truck after the truck has moved 75 m. a)How long does it take the automobile to overtake the truck

unbalanced force

explanation:

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 =

explanation:

wheres the pic