A ship moving North at 10mph. A passenger walks Southeast across the deck at 5mph. In what direction and how fast is the man moving, relative to the earth’s surface?

A group of hikers sets out going 10.0km [N], then 15.0km [E], then 4.0km [S]. The entire trip takes 4.00h. Determine the magnitude hikers' velocity for the trip.    4.04 km/h [N 21.8° E]       5.25 km/h [N 21.8° E]       7.25 km/h [N 21.8° E]       21.0 km/h [N 21.8° E]       65.25 km/h [N 21.8° E]

6. A train is moving with a constant speed. The train moves 60 meters for every 1.5 seconds that elapses. a. Assume that we get 40 by dividing 60 by 1.5. What is the name that is commonly given to a quantity represented by this number 40? b. To denote the quantity completely, what additional information must be given besides the number 40? c. How would you interpret the number 40 in this instance? Your answer should mention distance and time. d. Use your interpretation (not algebra) to find the distance the train moves in 2.5 seconds.

4. A plane traveling at 192 km/h [N] is blown eastward by the wind with a speed of 56.0 km/h. What is the velocity of the plane with respect to the ground? a. 1.36 x102 km/h [E 16.3o S]b. 2.00x102 km/h [N 16.3o E]c. 2.00x102 km/h [N 73.7o E]d. 2.48x102 km/h [E 73.7o S]e. 1.36 x102 km/h [N 73.7o E]

Two trains are 900.0 kilometers apart. One is in Portland. The other is in San Francisco. They both begin traveling toward each other at the same time. The Portland train travels with an average velocity of 80.0 km/hr South. The San Francisco train travels North with an average velocity of 65.0 km/hr North.a. At what time will the two trains meet?b. How far away will they be from Portland when they meet?

3. How far can you get away from your little brother with a squirt gun filled with ice cold water if you can travel at 3m/s and you have 12 seconds before he sees you?

3. You see a flash of lighting. By counting the seconds, you determine that it’s about1.6 km away. How long did the light take to reach you?

1. A car is travelling towards the start line and the timer starts timing when the car crosses the start line. When the car crosses the start line, it is travelling at 5 m.s1. The car maintains its speed for 3 seconds then speeds up to 8 m.s1 in 4 seconds. It maintains this speed for 1 second then brakes hard and comes to a rest in 3 seconds. 10 9. 8. 7 3 2 1 0. 0 1 2 3 4 7 8 9 10 11 Time (s) a) What is the instantaneous velocity of the car at t = 7 s? b) What is the displacement? c) What is the average velocity of the car for the journey? 5 4- Velocity (m/s)

6. A clock is showing the time as exactly 3:00 p.m. and 25 s. If the tip of the second hand is directly below the tip of the hour hand, and if the length of the second hand is 9 cm, what is the length of the hour hand? Note: While the second hand moves the minute and hours hands also move!

10. The speed of light traveling through air is 3.0×10® m/s, while the speed of sound traveling through air is 3.4×10² m/s. а. If a bolt of lightning strikes 5.5 km away, how much time does it take the flash of lightning to reach you?