Car a travels with the speed of 6 m/s and car b travels with speed of 10 m/s in the opposite direction. what is the speed of car b with respect to car a?

1. 4 m/s
2. 6 m/s
3. 10 m/s
4. 16 m/s

answer:

4. 16 m/s

explanation:

velocity of b respect to a = velocity of b respect to earth+ velocity of earth respect to a

earth is at rest relative to us,

velocity of b respect to a   = ( → 10 ms⁻¹ - 0 ) + ( 0 - ← 6 ms⁻¹ )

                                            = ( →10 ms⁻¹ + →   6 ms⁻¹ ) = → 16 ms⁻¹

a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be?

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i think it's 35 meters