Question

Велосипедист спускается с горы с постоянным ускорением 0,8м/с(в квадрате).Какова скорость его движения через 10 с,если начальная была 2 м/с?

Answer 1

Calculation of the Speed of the Cyclist

To calculate the speed of the cyclist after 10 seconds, we need to use the formula for constant acceleration:

v = u + at

Where: - v is the final velocity (speed) of the cyclist, - u is the initial velocity (speed) of the cyclist, - a is the acceleration of the cyclist, - t is the time.

In this case, the cyclist has a constant acceleration of 0.8 m/s² and an initial velocity of 2 m/s. We want to find the velocity after 10 seconds.

Plugging in the values into the formula, we have:

v = 2 m/s + 0.8 m/s² * 10 s

Simplifying the equation:

v = 2 m/s + 8 m/s

v = 10 m/s

Therefore, the speed of the cyclist after 10 seconds is 10 m/s