Question

Терміново!!!!!!!!! Тіло, що рухається рівноприскорено, пройшло за першу секунду 1 м, за другу – 2 м, за третю – 3 м. Яка початкова швидкість тіла

Answer 1

Ответ:

U₀=м/с 1с/1м= 1

Объяснение:

U₀=м/с 1с/1м= 1

Answer 2

Calculation of Initial Velocity for Uniformly Accelerated Motion

To find the initial velocity of an object undergoing uniformly accelerated motion, we can use the following kinematic equation:

v = u + at

Where: - v = final velocity - u = initial velocity - a = acceleration - t = time

Given the distances traveled in the first three seconds as 1m, 2m, and 3m, we can calculate the acceleration and initial velocity of the object.

Calculation Steps:

1. Calculate Acceleration (a): - Using the formula for distance traveled with uniform acceleration: s = ut + (1/2)at^2 - For the first second: 1m = u(1) + (1/2)a(1^2) - For the second second: 2m = u(2) + (1/2)a(2^2) - For the third second: 3m = u(3) + (1/2)a(3^2)

2. Solve for Acceleration (a): - Subtracting the equation for the first second from the equation for the second second gives: 2m - 1m = u(2) + (1/2)a(2^2) - (u + (1/2)a) - Similarly, subtracting the equation for the second second from the equation for the third second gives: 3m - 2m = u(3) + (1/2)a(3^2) - (u(2) + (1/2)a(2^2)) - This results in two equations with 'u' and 'a' as variables.

3. Solve for Initial Velocity (u): - Once the acceleration is found, the initial velocity can be calculated using the first equation: v = u + at, where v is the final velocity (which is not given in the question).

Conclusion:

The initial velocity of the object can be calculated using the above steps once the final velocity or acceleration is provided. If the final velocity is known, the initial velocity can be calculated directly using the equation v = u + at.