7. A car with non-uniform
motion travels 100 km in
4 hours. What can be said
about the speed of the
car?
(a) Its speed is constant at 25
km/h during the journey.
(b) Its average speed is 25
km/h during the journey
(c) Its speed is 25 km/h at the
beginning and end of the
journey and varies in between
(d) Its speed is 25 km/h for
most of the journey
Answers
Answered by
0
Answer:
Given that,
Distance covered by a car, d = 100 km
Time, t = 4 h
To find,
The speed of car
Solution,
The total distance covered divided by total time taken is called speed of an object. The speed of the car is given by :
v=d/t
v=100km/4h
v=25km/hr
We can say that the average speed of the car during the journey is 25 km/h. Hence, the correct option is (b).
Answered by
1
Answer:the correct answer is (a) it's speed it's constant 25 km/h during the journey
Step-by-step explanation:
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