Question

Трамвай массой 20 тонн развивает силу тяги 24000 Н. С каким ускорение движется вагон трамвая, если сила сопротивления движению равна 2000 Н?

Answer 1

Ma=F-Fcoпр  откуда а=(F-Fcoпр)/m=(24000-2000)/20000=1.1[м/с^2]

Answer 2

Calculating the Acceleration of the Tram Car

To calculate the acceleration of the tram car, we can use the following formula:

Acceleration (a) = (Net Force) / (Mass)

Where: - Net Force = Force of traction - Force of resistance - Mass = Mass of the tram car

Given values: - Mass of the tram car = 20 tons = 20000 kg (1 ton = 1000 kg) - Force of traction = 24000 N - Force of resistance = 2000 N

Calculating the Net Force

The net force acting on the tram car can be calculated as the difference between the force of traction and the force of resistance.

Net Force = Force of traction - Force of resistance

Net Force = 24000 N - 2000 N

Net Force = 22000 N

Calculating the Acceleration

Now, we can use the formula for acceleration to find the value.

Acceleration (a) = Net Force / Mass

Acceleration (a) = 22000 N / 20000 kg

Acceleration (a) = 1.1 m/s^2

Therefore, the tram car moves with an acceleration of 1.1 m/s^2.