Tom is measuring how fast his classmates can run 100 meters. He records his data below:Classmate Time (seconds)Yacob 22.9Mary 18.5David 13.2Eliza 16.1If Tom wants to determine each classmate's average speed—how many meters each covered per second—which lab tool would be most useful? A. a meter stick B. an anemometer C. a stopwatch D. a calculator

EXAMPLE 4 Suppose the odometer on our car is broken and we want to estimate the distance driven over a 30 second time interval. We take the speedometer readings every five seconds and record them in the following table.Time (s) 0 5 10 15 20 25 30Velocity (mi/h) 17 19 25 27 33 30 28In order to have the time and the velocity in consistent units, let's convert the velocity readings to feet per second (1 mi/h = 52803600 ft/s). (Round your answers to the nearest whole number.)Time (s) 0 5 10 15 20 25 30Velocity (ft/s) 25 37 48 44 41

A jogger is running at a speed of 15 km/hr. In what time he will cross a track of length 400 meters?A)100sB)87sC)96sD)45s

Use and describe the use of rules and measuringcylinders to find a length or a volume3 Use and describe the use of clocks and devices,both analogue and digital, for measuring aninterval of time4 Obtain an average value for a small distanceand for a short interval of time by measuringmultiples (including the period of a pendulum)Supplement2 Understand that a micrometer screw gauge isused to measure very small distancesP1.2 MotionCore1 Define speed and calculate average speed fromtotal distancetotal time4 Plot and interpret a speed–time graph and adistance–time graph6 Recognise from the shape of a speed–time graphwhen a body is:– at rest– moving with constant speed– moving with changing speed8 Calculate the area under a speed–time graph towork out the distance travelled for motion withconstant acceleration10 Demonstrate an understanding that accelerationand deceleration are related to changing speedincluding qualitative analysis of the gradient of aspeed–time graph11 State that the acceleration of free fall g for abody near to the Earth is constantSupplement2 Distinguish between speed and velocity3 Define and calculate acceleration usingchange of velocitytotal time5 Calculate acceleration from the gradient of aspeed–time graph7 Recognise linear motion for which theacceleration is constant and calculate theacceleration9 Recognise motion for which the acceleration isnot constant

Which of the following are continuous data?Number of runners in a 100 m race.Number of spectators watching a 100 m race.Time taken to run 100 mThe date on which the 100 m race is run.

Write a program that asks the user how many miles they ran and how many minutes it took to run that far. Ask for the input in this order!Convert their speed to miles per hour and print out their speed.Be sure to include comments that describe the program’s behavior which is how the program functions and how the user interacts with it.Sample output:How many miles did you run? 3How many minutes did it take you? 60Speed in mph: 3.0