Question

1) Поезд движется равноускоренно и через 10 с после начала движения приобретает скорость 0,6 м/с. Через сколько времени от начала движения скорость поезда станет равна 3 м/с?

Answer 1

N*10=?
n= t2/t1=5
ответ: он движется 50 сек.

Answer 2

N*10 = ?
n = t2/t1 = 5 
50 cek

Answer 3

Problem Analysis

We are given that a train is moving with constant acceleration and after 10 seconds from the start of its motion, it reaches a speed of 0.6 m/s. We need to determine how much time it will take for the train to reach a speed of 3 m/s.

Solution

To solve this problem, we can use the equations of motion for uniformly accelerated motion. The equation that relates the final velocity (v), initial velocity (u), acceleration (a), and time (t) is:

v = u + at (Equation 1)

We are given that the initial velocity (u) is 0 m/s, the acceleration (a) is constant, and the final velocity (v) is 0.6 m/s after 10 seconds. We can substitute these values into Equation 1 to find the acceleration:

0.6 = 0 + a * 10 (Equation 2)

Simplifying Equation 2, we find:

a = 0.6 / 10 = 0.06 m/s^2

Now, we can use Equation 1 again to find the time (t) it will take for the train to reach a speed of 3 m/s. We know the initial velocity (u) is 0 m/s, the acceleration (a) is 0.06 m/s^2, and the final velocity (v) is 3 m/s. Substituting these values into Equation 1, we have:

3 = 0 + 0.06 * t

Simplifying the equation, we find:

t = 3 / 0.06 = 50 seconds

Therefore, it will take the train 50 seconds from the start of its motion to reach a speed of 3 m/s.

Answer

The train will take 50 seconds from the start of its motion to reach a speed of 3 m/s.