Physics Review Question Part III

**Unit:** Mechanics

**Year:** 1997 **Question#:** 116

Base your answers to questions 116 through 120 on the information and vector diagram
below.

- A 20.-newton force due north and a 40.-newton force due east act concurrently on a
10.-kilogram object, located at point P.

116. Using a ruler, determine the scale used in the vector diagram by finding the
number of newtons represented by each centimeter. [1 point]

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You must actually take your ruler and measure the length of one of the vectors (it does
not matter which one you measure)

As you can see the 20.N vector is approximately 2.5cm long so the answer would be:

20N divided by 2.5 cm which equals 8N/cm