09/01/2023
The Speed of the any two vehicles is the same irregardless of the size of the vehicles. I.e, 100kph on T. Vitz is equal to 100kph on a FRR truck.
Point to note, the 100kph on the speedometer is the cumulative revolution of the vehicle's wheels, all factors considered (including friction, the Horsepower, torque and the rpm, wheel size, mass and weight of the vehicle, aerodynamics e.t.c). This is because a vehicle's speed sensors tap from the transmission output shaft,
Therefore, a speed of 100kmph in a trailer is the same as 100kmph in Suzuki Alto.
This is simply because speed is the distance covered per a unit time.
Velocity and momentum of the two vehicles will never be the same because
One, velocity is the displacement per unit time. A larger vehicle in size displaces a larger distance than a small vehicle in the same period of time.
Two, Moment is mass is the product of mass (which is not same for the two vehicles), and velocity (similarly different for the two vehicles).
Acceleration of the two vehicles will also be different considering various factors such as Horsepower, angular velocity, momentum, friction, weight of the driver's right foot, mass and weight, aerodynamics, among many others.
This might (SMH) explain why a one vehicle may seem faster than another vehicle at the same speed.