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

What do large numbers of people form when they come together?
A thermometer that was used in a calorimeter was consistently 2.7 °c too high. how would this affect the calculations of δh for the reactions conducted in the
Read the lines from "To His Excellency General Washington," and then answer the question. "Fix'd are the eyes of nations on the scales, For in their hopes Co
What are the 3 reasons Paris goes to Capulet’s tomb?
What does the decimal number 257 equal in the hexadecimal system? A. 101 B. 5D C. 4F D. C7 E. AB
Can anyone help pls I don’t get this one?
Find the length of the segment. Write the mixed number in simplest form. A. in. B. in. C. in. D. in.
What would be the best target market for waterproof fragrances?
HELP ASAP What are the coordinates of the endpoints of the midsegment for  △LMN that is parallel to LN?    Enter your answers, as a decimal or whole number, in
Which is a desirable characteristic when choosing a line of credit? rewards program annual fee amount of down payment amount of collateral