प्रश्न 8
मध्यममौलिक प्रश्नA man walks 5 km north, turns right and walks 3 km, then turns right again and walks 5 km. How far is he from his starting point, and in which direction?
उत्तर और हल देखें
सहीसही नहींउत्तर A
सही उत्तर: A
हल
Facing north and turning right means he now faces east, so the second leg is 3 km east.
Turning right again from east means he faces south, so the third leg is 5 km south.
The 5 km north and the 5 km south cancel exactly, leaving only the 3 km east.
He is 3 km east of where he began.
ध्यान देने योग्य
A rough sketch settles this faster than tracking the turns in your head. The path is three sides of a rectangle, and the missing fourth side is the answer.
- संकल्पना
- Net displacement after turns
- सामान्य समयसामान्य
- 70 से.
- आपका समयआपका
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