Question

Мяч был брошен из окна со скоростью 3 м/с.Найти скорость мяча через 2 сек после броска

Answer 1

По моему так: 3*2=5.............

Answer 2

Calculating the Speed of the Ball

To calculate the speed of the ball after 2 seconds, we can use the formula for the speed of an object under constant acceleration:

v = u + at

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

Given: - Initial velocity (u) = 3 m/s - Time (t) = 2 seconds

We also need to know the acceleration. Let's find the acceleration using the formula for the distance traveled under constant acceleration:

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

Where: - s = distance traveled - u = initial velocity - t = time - a = acceleration

We can rearrange this formula to solve for acceleration (a):

a = 2(s - ut) / t^2

Now, let's calculate the acceleration using the given initial velocity and time.

a = 2(s - ut) / t^2

a = 2(s - 3*2) / 2^2

a = (s - 6) / 4

We have the initial velocity (u) and time (t), but we need the distance traveled (s) to calculate the acceleration. Unfortunately, the provided search results do not contain the necessary information to calculate the distance traveled. Therefore, I'm unable to provide the exact speed of the ball after 2 seconds based on the given information.

If you have the distance traveled, please provide it, and I can help you calculate the speed of the ball after 2 seconds.