A 900kg car, traveling 15m/s to the right collides with a 2000kg pickup truck initially traveling 7m/s right. The collision lasts 0.7s, during which the average
impact force is 8470N.
תן
unit
before collision:
Iplcar =
unit
Ipl truck =
unit
after collision:
Ip car. =
Ipl truck =
unit
unit
What was the car's final speed and direction?
unit
What was the truck's final speed and direction?
unit

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 =

the right answer is 0.3 meters per second