Question

Автомобіль рівномірно рухається зі швидкістю 54 км/год по опуклому мосту радіусом 450 м.​

Answer 1

Ответ:

mg -N = mU/R

N = mg - mU/R

N = 800 * 10 - 800 * 152/100 = 8000 - 1800 = 6200(H)

Объяснение:

сподіваюся, я допоміг))

Answer 2

Calculation of Centripetal Acceleration:

To answer your question, we need to calculate the centripetal acceleration of the car as it moves along the convex bridge with a radius of 450 m and a speed of 54 km/h.

The centripetal acceleration can be calculated using the formula:

a = v^2 / r

Where: - a is the centripetal acceleration - v is the velocity of the car - r is the radius of the curve

Let's plug in the values:

- Velocity (v) = 54 km/h - Radius (r) = 450 m

First, we need to convert the velocity from km/h to m/s:

54 km/h = 54 * (1000/3600) m/s = 15 m/s

Now, we can calculate the centripetal acceleration:

a = (15 m/s)^2 / 450 m = 0.5 m/s^2

Therefore, the centripetal acceleration of the car moving at a speed of 54 km/h on a convex bridge with a radius of 450 m is 0.5 m/s^2.