Question

(A) Speed of the person when the person walks
1.distance between marked points AB=d=____m
2.mean valid of aberakr speed of walking =____ms-¹

(B) mean value of the average speed of running=______ms-¹

Conclusion
1. The person walked lengthAB (of ___m) with an average speed of _____ms-¹
2. The person en length AB(of____m auto an average speed is____ms¹)

Check your understanding
1. While moving to and and fro between A and B is your friend f moving equally fast when he is in the middle and when he is close to A or B? If no where is he faster?

2. a person moves from A to Be and returns back to A 1minutr 40 secomds. What is the average speed of the person


3.The distance meter of a truck shows that it had travelled a distance a distance of 69 km in one hour.Will it's speed meter read 68 km h-¹ for the whole journey?

4.Convert 18km h-¹ into ms-¹

5. How will you measure the Avatar e speed walking of you do not have a stop watch or your watch with a second hand,but have a device which gives a signal after every 5 seconds?
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Answer 1

Answer:

magnification produced by the rear view mirror fitted in vehicles can be calculated as,