Question

00. If the distance of 200 m is covered in 20 s, then the
speed is
(a) 10 km/h
(b) 20 km/h
(c) 26 km/h
(d) 36 km/h ji​

Answer 1

Answer:

option a is the right answer

Step-by-step explanation:

speed is given by distance by time

Answer 2

Speed of an Object = Distance Covered/Total Time Taken

⇒ Speed of an Object = 200 m/20 s

⇒ Speed of an Object = 200/20 m/s

⇒ Speed of an Object = 20/2 m/s

⇒ Speed of an Object = 10 m/s

• As the Options are in km/hr, Let's convert the Speed into km/hr

⇒ Speed of an Object = 10 m/s

⇒ Speed of an Object = 10 × m/s

⇒ Speed of an Object = 10 × (1/1000 km)/(1/3600 hr)

⇒ Speed of an Object = 10 × (1/1000)/(1/3600) km/hr

⇒ Speed of an Object = 10 × 3600/1000 km/hr

⇒ Speed of an Object = 10 × 36/10 km/hr

⇒ Speed of an Object = 10 × 3.6 km/hr

⇒ Speed of an Object = 36 km/hr