If the speed of the body is 50 m/s, then its speed in km/min is:
d) 2.
c) 18
by 3
a) 5
Three fourth (4) of a number is 27. Half of the number is:
Answers
Answered by
0
Answer:
3km/min
Step-by-step explanation:
50/1000km÷1/60 min
=50/1000×60 km/min
=3km /min
Attachments:
Answered by
0
Answer:
Let the total distance be 2x.
For first half distance :
Speed is 20 m/s
Thus time taken t
1
=
20
x
For second half distance :
Speed is 30 m/s
Thus time taken t
2
=
30
x
Average velocity V
avg
=
t
1
+t
2
2x
⟹ V
avg
=
20
x
+
30
x
2x
=
20+30
2×20×30
=24 m/s
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