A man travels 200 km distance with the speed
of 40 m's and next 50 km with the speed of 10
m's. Find the average speed of man.
Answers
Answered by
1
Explanation:
1 m/s= 18/5 km/h
40 m/s= 40*18/5= 144 km/h
10 m/s= 10*18/5= 36 km/h
Average speed= Total distance/Total time taken
=> (200+50)/(200/144+50/36)
=> 250(400/144)
=> 90 km/h
=> 25 m/s
Answered by
0
Explanation:
Speed 1= Distance 1/ time 1
time 1 = Distance 1/ Speed 1
t 1 = 200/ 40
t 1 = 5s
Speed 2= Distance 2/ time 2
time 2 = Distance 2/ Speed 2
t 2 = 50/10
t 2 = 5s
total distance = D1 +D2
= 200+50
= 250km
total time= t 1+ t 2
= 5+5
= 10s
Average speed = total distance/total time
= 250/10
therefore average speed= 25m/s
hope this helps you..
please mark this answer Brainliest
follow me please
Similar questions