Question

Найдите по формуле s =400-vtа) расстояние s,если скорость v =40 км|ч и t=3чб)время t,если v=90км/ч и s=40кмв)скорость v если s = 0 км и t= 8чПОМОГИТЕ ПРОШУ!!!

Answer 1

А)s=400-40*3=400-120=280
б)t=360/90=4
в)v=400/8=50

Answer 2

Calculation of Distance (s) using the formula s = 400 - vt

a) Given: - Velocity (v) = 40 km/h - Time (t) = 3 hours

To find the distance (s), we can substitute the given values into the formula s = 400 - vt.

Substituting the values: s = 400 - (40 km/h * 3 hours)

Calculating: s = 400 - 120 km s = 280 km

Therefore, the distance (s) is 280 km.

Calculation of Time (t) using the formula s = vt

b) Given: - Velocity (v) = 90 km/h - Distance (s) = 40 km

To find the time (t), we can rearrange the formula s = vt to solve for t.

Rearranging the formula: t = s / v

Substituting the values: t = 40 km / 90 km/h

Calculating: t ≈ 0.4444 hours

Therefore, the time (t) is approximately 0.4444 hours.

Calculation of Velocity (v) using the formula s = vt

c) Given: - Distance (s) = 0 km - Time (t) = 8 hours

To find the velocity (v), we can rearrange the formula s = vt to solve for v.

Rearranging the formula: v = s / t

Substituting the values: v = 0 km / 8 hours

Calculating: v = 0 km/h

Therefore, the velocity (v) is 0 km/h.

I hope this helps! Let me know if you have any further questions.