PHYSICS

 

Answer the questions below:

1.    The width and length of a room are 3.2 yd and 4.0 yd respectively.  The height of the room is 8.0 ft.

a.    What is the volume of the room in cubic meters?
b.    What is the area of the ceiling in the room in square centimeters?

2.    Vector R has a magnitude of 10 units and is orientated at an angle of 30o above the x-axis.

a.    Find the x-component of vector R.
b.    Find the y-component of vector R.
c.    If the x-component of vector R is doubled and y-component remains the same, what is the resulting magnitude and direction of the new vector Q?

3.    A student walks 30 meters east followed by 20 meters north followed by 50 meters west.

a.    Use vector arrows to sketch the path that the student followed:
b.    What is the total distance traveled by the student?
c.    What is the student’s displacement?

4.    Vectors A, B, and C are defined below:

A = 30 meters at 0 ̊
B = 10 meters at 270 ̊
C = 15 meters at 60 ̊

Vector D is the sum of all the vectors such that D = A+B+C.

a.    What are the x and y components of vector D?
b.    What is the magnitude and direction of vector D?

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