Pls answer 10 and 11 and 12 fast. Do as much as possible
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10. The average speed of an object is the total distance traveled by the object divided by the elapsed time to cover that distance. It's a scalar quantity which means it is defined only by magnitude.
The first half= 50 m / 10 sec
Second half= 50m/20 sec
Average speed= Total distance covered/ Time taken
= 100m/30 sec
= 3.333 m/sec
11.45 /10=4.5 sec
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