Abicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. during the first part, she rides for 22 minutes at an average speed of 7.2 m/s. during the second part, she rides for 36 minutes at an average speed of 5.1 m/s. finally, during the third part, she rides for 8.0 minutes at an average speed of 13 m/s. a. how far has the bicyclist traveled during the entire trip? b. what is her average velocity for the entire trip?

part a)

path of the cyclist consist of three parts

during the first part, she rides for 22 minutes at an average speed of 7.2 m/s. during the second part, she rides for 36 minutes at an average speed of 5.1 m/s. finally, during the third part, she rides for 8.0 minutes at an average speed of 13 m/s.

total distance in first part

total distance in second part

total distance in third part

so total distance would be

part b)

average velocity is given as

so average velocity is 6.76 m/s

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever