Mr. mcniven is hiking in a florida state park. if mcniven hikes 15 kilometers in a westerly direction, then turns 90 degrees and walks 30 kilometers directly south, determine the magnitude and direction mcniven is from his starting point.

33.5 km at south of west

Explanation:

To solve the problem, we take the following convention:

- West is positive x-direction

- South is positive y-direction

Using this convention, we can describe the two parts of the motion as follows:

1) 15 km west: the components of this part of the motion are

2) 30 km south: the components of this part of the motion are

Therefore, the components of the net displacement are

So, the magntidue of the net displacement is

while the direction is:

south of west.

answer: question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.