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Physics, 02.09.2020 02:01 cycy24

I'm giving 100 points for all the answers please help! 1. Polar bears are extremely good swimmers and can travel as long as 36000s (10hr) without resting. If a polar bear swims 93,000 m in this time, what was it’s average velocity? 2. Tree sloths are the slowest mammals on Earth. A typical tree sloth moves with a maximum speed of 0.075m/s. How far could a tree sloth travel in 60s? 3. If you travel 2 km to the store and then back home, what distance have you traveled? 4. If you travel 2 km to the store and then back home, what is your displacement? 5. Which of the following is a vector quantity? a) 20 b) 20m/s c) 20 m/s east d) 20 east 6. For the answer you chose for question 5 – What pieces of information does it have that makes it a vector quantity? 7. You drop a ball from a height of 2.0m. It falls to the floor, bouncing straight upward 1.3m, falls to the floor again, bounces to 0.7m, and then comes to rest on the floor. What is the distance the ball traveled? 8. What is the displacement of the Ball? (Don’t forget that displacement is a vector!) 9. If a walrus swims at an average velocity of 9.7 m/s for 204 s, how far does it swim? 10. Superbly adapted for speed, the cheetah is the fastest of the big cats, able to retain speeds of 112 km/hr (31.1m/s). How far would a cheetah be able to run at this velocity in 45 s? 11. The world’s fastest elevator travels at an average velocity of 10m/s. If it takes 21.9s for the elevator to reach the top floor of the building, how far above the ground is the last floor? Review 1) Name one scalar quantity and give an example: 2) Name one vector quantity and give an example: 3) What is the difference between a vector and a scalar quantity?

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