Question

Лыжник, спускаясь с горы, движется с ускорением 0,5 м/с². Какое расстояние преодолевает лыжник за 30 с спуска, если его начальная скорость была равна нулю?

Answer 1

A=v-v0\t формула ускорения V0=0 => 0,5=v\30 => 0,5v=30 v=30/0,5=60

Answer 2

Calculation of Distance Traveled by the Skier

To calculate the distance traveled by the skier, we can use the equation of motion:

S = ut + (1/2)at^2

where: - S is the distance traveled - u is the initial velocity (which is zero in this case) - t is the time taken - a is the acceleration

Given that the skier has an acceleration of 0.5 m/s² and a time of 30 seconds, we can substitute these values into the equation to find the distance traveled.

S = (0)(30) + (1/2)(0.5)(30)^2

Simplifying the equation:

S = 0 + (0.5)(0.5)(900)

S = 0.25(900)

S = 225 meters

Therefore, the skier travels a distance of 225 meters during the 30-second descent.