Inertia Force Calculator, Formula, IF Calculation

Inertia Force Calculator

Enter the values of inertial mass, IM_(kg), change in velocity, V_(m/s) and time, T_(s) to determine the value of inertia Force, IF_(N).

Inertia Force Formula

Inertia force (IF) represents the force required to change the velocity of an object with a given inertial mass (IM) over a certain period of time (T).

Inertia Force, IF_(N) in Newtons, is calculated by multiplying the inertial mass, IM_(kg) in kilograms, by the change in velocity, V_(m/s) in meters per second, divided by the time, T_(s) in seconds over which the change occurs.

Inertia Force, IF_(N) = IM_(kg) * V_(m/s) / T_(s)

IF_(N) = inertia force in Newtons, N.

IM_(kg) = inertial mass in kilograms, kg.

V_(m/s) = change in velocity in metre per seconds, m/s.

T_(s) = time in seconds, s.

Inertia Force Calculation:

1. Calculate the inertia force needed to accelerate a car with a mass of 1500 kg from rest to 30 m/s in 10 seconds.

Given: IM_(kg) = 1500kg, V_(m/s) = 30m/s, T_(s)  = 10s.

Inertia Force, IF_(N) = IM_(kg) * V_(m/s) / T_(s)

IF_(N) = 1500 * 30 / 10

IF_(N) = 4500N.

2. Find the time it takes for a force of 1000 N to change the velocity of a 500 kg object by 20 m/s.

Given: IM_(kg) = 500kg, V_(m/s) = 20m/s, IF_(N) = 1000N.

Inertia Force, IF_(N) = IM_(kg) * V_(m/s) / T_(s)

T_(s) = IM_(kg) * V_(m/s) / IF_(N)

T_(s) = 500 * 20 / 1000

T_(s) = 10s.

Inertia Force calculation in a Reciprocating Engine