Question

автомобіль має масу 2 тонни з водієм який важить 80кг автомобіль починає рухатися з прискоренням 3,84 м/с². Коли в автомобіль сів пасажир прискорення стало 3,72 м/с² яка маса пасажира, якщо автомобіль маж силу тяги 8кН

Answer 1

Ответ:

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Answer 2

Calculation of Passenger's Mass

To calculate the mass of the passenger, we can use Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration. In this case, the force acting on the car is the force of traction, which is given as 8 kN (kilonewtons), and the acceleration changes from 3.84 m/s² to 3.72 m/s² when the passenger gets in.

Let's denote the mass of the car as M (2 tons = 2000 kg) and the mass of the passenger as m (unknown). The total mass of the car and the passenger is then M + m.

According to Newton's second law, the force acting on the car is equal to the total mass multiplied by the acceleration:

Force = (M + m) * acceleration

We can rearrange this equation to solve for the mass of the passenger:

m = (Force / acceleration) - M

Now let's substitute the given values into the equation:

Force = 8 kN = 8000 N acceleration = 3.72 m/s² M = 2000 kg

Plugging these values into the equation, we can calculate the mass of the passenger:

m = (8000 N / 3.72 m/s²) - 2000 kg

Calculating this expression gives us the mass of the passenger.

Please note that the given values are in metric units, so we need to ensure consistency in the units used throughout the calculation.