Lin needs a 45-meter head start as Lin will travel 120 meters in 30 seconds, and Diego will travel 165 meters in 30 seconds.
Time = 30 sec
Lin's speed = 4m/s
Diego's speed = 5.5m/s
Distance travelled by ,
Lin = speed * time = 4 * 30
= 120 m
Diego = 5.5 * 30
= 165
Therefore, Diego will travel 45 m more than Lin in 1 sec.
Therefore, the head start should be of 45m.
The most crucial scientific notion is measurement is speed . Base or physical fundamental units are used to quantify a wide range of quantifiable quantities. One such measurable metric is speed, which calculates the ratio between the distance an object travels and the time needed to cover that distance.
The distance travelled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar quantity.
To learn more about speed
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