An object travels 30m in 7 seconds and another 18m in 5 seconds. Calculate the average speed of the object
Answers
Explanation:
Given that,
S1 = 18m
T1 = 4sec
S2 = 18m
T2 = 2sec
Average velocity = Total distance / Total Time
= 18 + 18 / 4 + 2
= 36 / 6 = 6m/sec.
Answer:
Let, The distance travelled by an object D1 = 30m
Time taken by the object T1 = 7sec
So, Speed of the object S1 = D1 / T1
S1 = 30 / 7
S1 = 4.286m/sec
The distance travelled by an object D2 = 18m
Time taken by the object T2 = 5sec
So, Speed of the object S2 = D2 / T2
S2 = 18 / 5
S2 = 3.6m/sec
Now, the average speed of the object S = S1 + S2 / 2
S = 4.286 + 3.6 / 2
S = 7.886 / 2
S = 3.943m/sec
Explanation: