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- Multiple ChoicePlease save your changes before editing any questions.A man walks 30 meters South, 25 meters West, 50 meters North, and 15 meters East in 80 seconds. What was his displacement?35.4 meters NW22.4 meters SE119 meters22.4 meters NW
- Multiple ChoicePlease save your changes before editing any questions.A man walks 30 meters South, 25 meters West, 50 meters North, and 15 meters East in 80 seconds. What was his total distance?40 meters22.4 meters30 meters120 meters
- Multiple ChoicePlease save your changes before editing any questions.A man walks 30 meters South, 25 meters West, 50 meters North, and 15 meters East in 80 seconds. What was the average velocity that he traveled?0.44 m/s NW1.5 m/s SW1/5 m/s NW0.28 m/s NW
- Multiple ChoicePlease save your changes before editing any questions.The result of adding two vectors together is called the?independent vectorresultant vectordirectional vectormanipulated vector
- Multiple ChoicePlease save your changes before editing any questions.The diagram represents the path of a car that is driven off a cliff. Neglecting air resistance, the horizontal component of the velocity at A is _______ the horizontal component of the velocity at Bsmaller thangreater thanthe same ascan not be determined
- Multiple ChoicePlease save your changes before editing any questions.Which of the following is a physical quantity that has a magnitude but no direction?VectorScalarResultantFrame of Reference
- Multiple ChoicePlease save your changes before editing any questions.Identify the following quantities as scalar or vector: the mass of an object, the number of hairs on a dog, an airplane's velocity.Vector, Scalar, ScalarScalar, Scalar, VectorVector, Scalar, ScalarScalar, Vector, Vector
- Multiple ChoicePlease save your changes before editing any questions.Identify the following quantities as scalar or vector: the speed of a cat, the time it takes to run a marathon, the free-fall acceleration.Vector, Scalar, ScalarScalar, Scalar, VectorVector, Scalar, ScalarScalar, Vector, Vector
- Multiple ChoicePlease save your changes before editing any questions.
How do we combine vectors that are in the same direction?
Add them
Subtract them
Use the Pythagorean theorem
Take the square root
- Multiple ChoicePlease save your changes before editing any questions.
When vectors are parallel but in opposite directions how are they combined?
Add them
Subtract them
Use the Pythagorean theorem
Take the square root
- Multiple ChoicePlease save your changes before editing any questions.
A quantity that shows only magnitude is a ___________ quantity
vector
resultant
scalar
directional
- Multiple ChoicePlease save your changes before editing any questions.
Vectors show ______________________ by the way the arrow tip is pointing and by measuring the angle in a N,S, E, W coordinate system.
Direction
Addition
Magnitude
Subtraction
- Multiple ChoicePlease save your changes before editing any questions.Which statement describes a vector?It has magnitude but no directionIt has direction but no magnitudeIt has both direction and magnitudeIt has constant magnitude but no
direction - Multiple ChoicePlease save your changes before editing any questions.A sailboat moves West across a river 1250 meters at 5 m/s. The boat encounters a current going South at 7 m/s. How long will it take for the boat to cross the river?250 seconds145 seconds1.4 seconds179 seconds
- Multiple ChoicePlease save your changes before editing any questions.A sailboat moves West across a river 1250 meters at 5 m/s. The boat encounters a current going South at 7 m/s. What is the resultant velocity of the sailboat?2.0 m/s Southwest8.6 m/s Southwest8.6 m/s Northwest12 m/s Southwest
- Multiple ChoicePlease save your changes before editing any questions.A motorboat with a speed of 5.0 meters per second in still water is headed East. The motorboat then comes to a river heading South with a speed of 3.3 meters per second. What is the boat's resulting velocity when the boat enters the flow of the river?3.3 m/s S5.0 m/s E6.0 m/s SE8.3 m/s SE
- Multiple ChoicePlease save your changes before editing any questions.A motorboat traveling 5 m/s East across a river encounters a current moving 3.5 m/s South. If it takes the boat 25 seconds to cross the river, how far downstream is the boat pushed by the current?125 m62.5 m139.8 m312.5 m
- Multiple ChoicePlease save your changes before editing any questions.A plane at a height of 400 m drops a skydiver and he lands 500 m from the drop point. How fast is the plane flying?143 m/s45 m/s6.25 m/s56 m/s
- Multiple ChoicePlease save your changes before editing any questions.What is the SI unit for speedKmsm/sm/s2
- Multiple ChoicePlease save your changes before editing any questions.When something has speed in a certain direction it is called ___________.motionpositionvelocityspeed