Question

Машина массой 1т движется по вогнутому мосту со скоростью 36км / час.С какой силой давит машина на мост в нижней точке моста, если его радиус 100м?

Answer 1

Дано m=1000 кг    V=10 м/с     R=100 м      P- ?

так как центростремительное ускорение направлено вверх

P=m*g-m*a=m*(g- V^2/R)=1000*(9,8- 1)=8,8 кН

Ответ P=8,8 кН

Answer 2

Calculation of the Force Exerted by the Car on the Bridge

To calculate the force exerted by the car on the bridge at the bottom point of the bridge, we can use the centripetal force formula:

F = (m * v^2) / r

Where: - F is the force exerted by the car on the bridge - m is the mass of the car (1 ton = 1000 kg) - v is the velocity of the car (36 km/h = 10 m/s) - r is the radius of the bridge (100 m)

Let's substitute the given values into the formula and calculate the force:

F = (1000 kg * (10 m/s)^2) / 100 m

F = (1000 kg * 100 m^2/s^2) / 100 m

F = 100,000 N

Therefore, the car exerts a force of 100,000 Newtons on the bridge at the bottom point.