Question

Найти модуль импульса тела p=4i+7tj+2tk в начальный момент времени. с решением ответьте​

Answer 1

Ответ:

|p|=корень((4^2)+(7t^2)+(2t^2))

|p|=корень(16+49t^2+4t^2)

t=0c

=>|p|=корень16

|p|=4 (кг*м)/с

Объяснение:

Это может быть не верно!

я дурак

простите меня!

Answer 2

Finding the Initial Momentum of the Body

To find the initial momentum of the body given the vector p = 4i + 7tj + 2tk, we can use the formula for momentum, which is given by p = mv, where p is the momentum, m is the mass, and v is the velocity.

Solution

The given vector for momentum is p = 4i + 7tj + 2tk.

The initial momentum of the body can be found by evaluating the vector at the initial time, which means when t = 0.

Substituting t = 0 into the vector p = 4i + 7tj + 2tk, we get:

p(0) = 4i + 7(0)j + 2(0)k p(0) = 4i

So, the initial momentum of the body is 4i.

Therefore, the initial momentum of the body at the beginning of the motion is 4i.

I hope this helps! If you have any further questions or need additional assistance, feel free to ask.