Alarge wedge with a mass of 10kg rests on a horizontal frictionless surface, as shown. a block with a mass of 5.0kg starts from rest and slides down the inclined surface of the wedge, which is rough. at one instant the vertical component of the block’s velocity is 3.0m/s and the horizontal component is 6.0m/s. at that instant the velocity of the wedge is:

i sometimes feel that way too. i feel that i should hurt someone because they hurt me, but i wouldnt do it. that would make things so much worse i have so much experience with this stuff

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 =

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.