Question

1.) You want to cross the river by swimming directly across with a speed of & m/s. The current of the water is 4m/s. Approximately, what is the resultant? (hint: this is an example of a right triangle)

a. 12 m/s

b. 7 m/s

c. 9 m/s

d. 80 m/s

2.) You are asked to jump from a building without any support. Which of the following floors would you choose so that you would obtain the least injury?

a. fifteenth floor

b. fifth floor

c. tenth floor

d. second floor

3.) Which of the following is not an example of displacement?

a. 5 m NW

b. 2607 m south

c. 250 m

d. 370 m 30 degrees from horizontal

Answer 1

1. Answer: c. 9 m/s

2. Answer: d. second floor

3. Answer: c. 250 m