Two cars start from the same place at the same time in the same direction. The speed of the first car is 70 km/h and that of the second car is 20 m/s.
i) Which car is moving faster ?
ii) What is the distance between the cars after 1 hour 15 minutes?
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Answer:
i] Speed of car 1 = 70km/hr
Speed of car 2 =.20m/hr
∴ Speed of car 1 is in km, so we will convert it into m.
∴ 1 km = 1000 m
∴ 70 km = 70 x 1000
∴ 70 km = 70000 m
∴ 70000 m > 20 m
∴ Car 1 is moving faster than Car 2
ii] When we take the car speed after 1 hr and 15 min, the distance between the two cars will be same only.
Distance between the two cars = 70000 - 20
= 69980 m
∴ Distance between the two cars is 69980 m.
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