An object moves 20 m in the first 3 seconds , 22 m in the next 3 seconds. What is its average speed?
1 point
7 m/s
8 m/s
6 m/s
10 m/s
Answers
Provided:
An object is covering a certain distance in certain period of time and the information about its motion of given:
- 20 m in the first 3 seconds.
- 22 m in the next 3 seconds.
Solution:
In total, it is travelling for 6 seconds. So, the distance covered in between these 6 seconds of travel:
➝ Dis. in first 3 sec + Dis. in next 3 sec
➝ 20 m + 22 m
➝ 42 m
So, This is our total distance covered. Now we also know the total time taken i.e. 3 + 3 = 6s
Now, Finding Avg. speed by using formula:
Plugging the given values:
➝ Avg. speed = 42 m / 6s
➝ Avg. speed = 7 m/s (Answer)
And we are done !!
An object moves 20 m in the first 3 seconds , 22 m in the next 3 seconds. What is its average speed?
Given:-
Distance covered in 3 sec is 20m
In next 3sec it covers 22m
️ ➭ Distance 1 + Distance 2
Time 1 + Time 2
️ ➭ 22 + 20
3 + 3
️ ➭ 42/6
️ ➭ 7 m/s