kathymcgee3922 kathymcgee3922

31-07-2019
Physics

contestada

An object moves 20m east in 30s and then returns to its starting point taking an additional 50s. If west is chosen as the positive direction, what is the average speed of the object? A. -0.5m/s
B. 0.5 m/s

Respuesta :

Karabo99 Karabo99

09-08-2019

Answer:

b) 0.5 m/s

Explanation:

let V be the averare speed of the object.

the average speed is given by:

V = total distance / total time

= (20+20)/(30+50)

= 0.5 m/s

Therefore, the average speed of the object is 0.5 m/s.

Answer Link

Otras preguntas

3.5.3 Quiz: Stretching Functions Vertically Question 4 of 10 Suppose that F(x) = x² and G(x) = -1(x+7)². Which statement best compares the graph of G(x) with th

If we use the decision tree above to classify the following test dataset, what would the True Positive value age income student credit_rating buys_computer <

Let X be a random variable for some distribution with continuous CDF. A normality test is a hypothesis test where the null and alternative hypothesis are specif

A rack is made from roll-formed sheet steel and has the cross section. The dimensions are indicated at the center thickness of each segment. Suppose that l1 = 7

According to William Julius Wilson, how does work dissappear from the inner cities? a. Industrial restructuring and the movement of factories out of the inner c

Write the PMT function to determine AW for year 4, if net operating costs are entered into cells B2 through B6. A) PMT(B2:B6, 4) B) PMT(4, B2:B6) C) PMT(4, B2,

The tube-like structure that serves as the birth canal in the human female is the Outerine tube. uterus. vagina. cervix.

Select the correct answer from each drop-down menu. What adaptations does this plant have to thrive in a dry and arid environment? A photo of a Saguaro cactus i

Gametes are a. found in every cell of the body.b. either eggs or sperm.c. the chromosomes found in egg cells.d. genes passed on to offspring during recombinatio

Diversity can be defined as any attribute relevant to an individual that creates or reinforces a perception that he or she is different from another individual.