Question

Найдите изменение импульса трактора, если масса его равна 6,5 т, и он изменил скорость с 3,6 до 7,2 км/ч?

Answer 1

Ответ: 65000кг*м/с

Объяснение:

Дано:

m=6,5т=6500кг

V1=36км/ч=10м/с

V2=72км/ч=20м/с

=================

Δр-?

Δр=р2-р1=mV2-mV1=m(V2-V1)=6500*(20-10)=65000кг*м*/с

Answer 2

Calculation of Change in Momentum

To calculate the change in momentum of the tractor, we can use the formula:

Change in momentum = mass × change in velocity

Given: - Mass of the tractor = 6.5 tons - Change in velocity = 7.2 km/h - 3.6 km/h

First, let's convert the mass of the tractor from tons to kilograms. Since 1 ton is equal to 1000 kilograms, the mass of the tractor is:

Mass = 6.5 tons × 1000 kg/ton

Now, let's convert the change in velocity from km/h to m/s. Since 1 km/h is equal to 0.2778 m/s, the change in velocity is:

Change in velocity = (7.2 km/h - 3.6 km/h) × 0.2778 m/s/km/h

Finally, we can calculate the change in momentum using the formula:

Change in momentum = Mass × Change in velocity

Let's plug in the values and calculate the change in momentum.