scalar

which of the following is a physical quantity that has a magnitude but no direction?

velocity

which of the following is an example of a vector quantity?

vectors

Multiplying and dividing vectors by scalar results in

cos θ

In a coordinate system, a vector is orientated at angle θ with respect to the x-axis. The x component of the vector equals the vector’s magnitude multiplied by which trigonometric function?

5

How many displacement vectors shown in the figure above have horizontal components

D1 and D4

Which displacement vectors shown in the figure above have vertical components that are equal?

a baseball being thrown

which of the following is an example of projectile motion?

a parabola

what is the path of a projectile

a stone thrown into a lake

which of the following exhibits parabolic motion?

a flat piece of paper released from the window

which of the following does not exhibit parabolic motion?

B

at what point of the ball’s path shown in the figure above is the vertical component of the ball’s velocity zero?

move west at a speed that is equal to the bus’ speed

A passenger on a bus moving east sees a man standing on a curb. From the passenger’s perspective, the man appears to what?

straight down

A piece of chalk is dropped by a teacher walking at a speed of 1.5 m/s

displacement

Is distance or displacement a vector quantity?

The vectors must be perpendicular to each other

The equation D= square root x^2 + y^2 is valid only if triangle x and triangle y are magnitudes of vectors that have what orientation with respect to each other?