Question

V=-60 км\Ч v= 30км ч s =60 ки t=?​

Answer 1

Ответ:

-60;30=-30

Пошаговое объяснение:

Answer 2

It seems like you want to calculate the time (t) it takes for an object to travel a distance (s) with an initial velocity (V) and a final velocity (v). You've provided the following values:

• Initial velocity (V) = -60 km/h (negative because it's in the opposite direction)
• Final velocity (v) = 30 km/h
• Distance (s) = 60 km

To calculate the time (t), you can use the following equation:

$s = \frac{(V + v) \cdot t}{2}$

Now, plug in the values:

$60 \text{ km} = \frac{(-60 \text{ km/h} + 30 \text{ km/h}) \cdot t}{2}$

Simplify the equation:

$60 \text{ km} = \frac{-30 \text{ km/h} \cdot t}{2}$

Now, multiply both sides of the equation by 2 to isolate t:

$2 \cdot 60 \text{ km} = -30 \text{ km/h} \cdot t$

$120 \text{ km} = -30 \text{ km/h} \cdot t$

Now, divide both sides by -30 km/h to find t:

$t = \frac{120 \text{ km}}{-30 \text{ km/h}}$

Now, calculate t:

$t = -4 \text{ hours}$

So, it takes 4 hours to travel a distance of 60 km with an initial velocity of -60 km/h and a final velocity of 30 km/h. The negative sign indicates that the motion is in the opposite direction of the initial velocity.