Question

A person jogs 4.0 km in 32 minutes, then 2.0 km in 22 minutes, and finally 1.0 km in 16 minutes. What is the jogger’s average speed in km per minute?

Answer 1

Answer:

speed is distance by time.

and average speed is total distance by total time.

so according to your questions,

total distance is (4+2+1) Km = 7Km

and total time is (32+22+16) = 70 min

therefore according to formula

total distance by total time = 7 / 70 = 0.1km per min.

you should know about distance, displacement, speed, velocity and acceleration.