These are “plug-in-the-number” type activities to familiarize yon with the equations that link the concepts of physics. They are mainly one-step substitutions and are less challenging than the Problem. ? Calculate the average speed of a cheetah that runs 140 meters in 5 seconds.

ANSWER: The basic equation which relates speed, time and distance is given as, speed = distance / time (1) As the cheetah runs 140 meters in 5 seconds, it’s speed will be, average speed = 140 / 5 = 28 m/s. CONCLUSION: The average speed of cheetah is 28 m/s.