Question

Автомобиль массой 2 т движется со скоростью 54 км/ч по мосту с радиусом кривизны 50 м. В верхней точке моста автомобиль действует на мост с силой...?

Answer 1

F=mg-mV^2/R
F=20000-9000=11кН

Answer 2

Calculation of Centripetal Force

To calculate the centripetal force acting on the car at the top of the bridge, we need to use the formula:

F = (m * v^2) / r

Where: - F is the centripetal force - m is the mass of the car (2 tons or 2000 kg) - v is the velocity of the car (54 km/h or 15 m/s) - r is the radius of curvature of the bridge (50 m)

Let's plug in the values and calculate the centripetal force:

F = (2000 kg * (15 m/s)^2) / 50 m

Calculating this equation gives us the value of the centripetal force acting on the car at the top of the bridge.

Calculation of Centripetal Force Result

The centripetal force acting on the car at the top of the bridge is 7200 N.