Question

Тело,движется по горизонтальной поверхности без трения.перед тем,как тело остановилось через 25секунд,оно двигалось с ускорением 0,4.рассчитайте значение скорости тела,когда оно начинает тормозить

Answer 1

V= at =0,4*25=10м\с     конечная скорость равна нулю

Answer 2

Calculating the Velocity of the Object when it Begins to Decelerate

To calculate the velocity of the object when it begins to decelerate, we can use the following formula:

Final velocity (v) = Initial velocity (u) + (Acceleration (a) × Time (t))

Given: - Initial velocity (u) = ? - Acceleration (a) = 0.4 (m/s^2) - Time (t) = 25 seconds

Using the given acceleration and time, we can calculate the final velocity of the object when it begins to decelerate.

Calculation

Using the formula: v = u + (a × t)

Substituting the given values: v = u + (0.4 × 25)

Result

v = u + 10 m/s

Therefore, the velocity of the object when it begins to decelerate is u + 10 m/s.