vectors problems

Question

1. Classify each measurement as a vector or a scalar. 
2. The volume of a bottle is 591 mL
3. A car is travelling at 85 km/h
4. proju→v→
5. A ship is sailing at 45 knots with a bearing of 172°
6. AB→
7. The moon’s phases cycle every 29.5 days.

Answer 1

Hello!

For this problem, remember that a scalar is just a number, quantity, or magnitude. A vector has both a magnitude and a direction. So, for example, 25 miles per hour is a scalar, but 25 miles per hour in the northeast direction is a vector. So, for example, a must be a scalar because a volume is just a number and has no direction. Using this same logic you can determine the rest of the problem!