Numerical: a) A body of mass 50kg is moving in a forward direction when a force of 10N is applied on it. Calculate
the acceleration produced in the body

Explanation:

Given:

Force = F = 10 N

Mass = m = 50 kg

Required:

Acceleration = a = ?

Formula:

F = ma

Solution:

For a, the formula will be:

=> a = F/m

=> a = 10/50

=> a = 0.2 m/s²

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 =