goyalkanhaiya77 goyalkanhaiya77
  • 02-08-2021
  • Physics
contestada

can you guys pls also solve for average speed.
​

can you guys pls also solve for average speed class=

Respuesta :

machmillerg
machmillerg machmillerg
  • 02-08-2021

Answer:

d_t = 3.05km

v_a = 4.3km/h

Explanation:

42mins*(2/3) = 28mins

42mins-28mins = 14mins

d = v*t

d_1 = (4km/h)*(1h/60mins)*(28mins)

d_1 = 1.87km

d_2 = (5km/h)*(1h/60mins)*(14mins)

d_2 = 1.17km

d_t = d_1+d_2

d_t = 1.87km+1.17km

d_t = 3.05km

v_a = (v_1+v_2)/2

v_a = [(2*4km/h)+5km/h)]/3

v_a = 4.3km/h

Answer Link

Otras preguntas

HELPPPPPPPPPP PLEASEEEEEEEE!!!!!!
What’s the value of X when 10 X equals 12
HELPPPPPPPPPP PLEASEEEEEEEE!!!!!!
7times a number is 8 less than the square of that number. Find the positive solution.
What is the distance between 120-130 on a number line?
for each of the follwing situations write down the formula andd determine itf it defines a linear function
R N Q 45 45 9. ZQZR is a straight angle. What is the measure of OZS? ABCDE A. 45 B. C. D. S E. 60° 90° 125° 135°how to solve this?​
What word in Spanish use these letters goreals?
A bond is worth $100 and grows in value by 2 percent each half year. find the value of f(1) = 100 (1.02)²^t
There are 70 new houses being built in a neighborhood. Last month, 2/5 of them were sold. This month, 2/7 of the remaining houses were sold. How many houses are