Marathon swimmer Jian is swimming in the Atlantic Ocean. She is moving north with a velocity of 2 m/s relative to the water. The ocean current is also moving north but at 1 m/s. What is Jian's absolute or true velocity?
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- Could I have help with this average speed and velocity problem. I already know the answers"average velocity = 2.7 m/s due east, average speed = 8.0 m/s" but I need a detailed explanantion on how and why because I am not understanding and getting the same answersAlex goes cruising on his dirty bike. He rides 700 meters north and 300 meters east. What distance did he cover? What was his displacement?A goalie completes a goal kick with the ball on the ground. The ball has a vertical velocity of 35 m/s and a horizontal velocity of 20 m/s when it leaves the goalie's foot. How long is the soccer ball in the air? Ignore air resistance. A.) 3.57 s B.) 2.04 s C.) 7.14 s
- Which of the following quantities has units of a displacement? (There could be more than one correct choice.) 186,000 mi 40 km southwest 0-120 m/s O9.8 m/s2 O 32 ft/s vertically downwardTwo students are discussing the motion of an object as it falls close to the earth. Jerry makes the following statement: “The velocity of an object when it is falling close to the earth never changes because acceleration due to gravity is constant. “ Susan does not agree with Jerry. Which reason below should Susan give to Jerry to correct his misconception?If we know a truck is moving with a velocity 10.0 m/s at t = 0.0 s, and its velocity becomes 12.0 m/s at time t = 3.0 s. What is the position of the truck at t = 3.0 s ? O 5 m O 20 m O 30 m O 10 m O 33 m
- A bug flies east at 2.5 m/s. A light breeze blows on the bug with a velocity of 2.5 m/s due east. What is the resultant velocity of the bug? O 5 m/s, east O 5 m/s, west O 2.5 m/s, east O 0 m/sIf a ball is thrown straight up into the air, what is its acceleration as it moves upward? How do I figure this out? it is asking for m/sAt t=0 an object has a velocity of 35 m/s and a steady acceleration of -10 m/s2. Make a sketch of velocity vs. time for this motion from t=0 to t=5 s. Make a sketch of acceleration vs. time for this motion from t=0 to t=5 s. Does the object change directions between 0 and 6 s?
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