4249

Physics Vectors Level: Misc Level

If the magnitude of the product A x B is equal to the AB, then

A. vectors A and B cannot be in the same plane.

b.vectors A and B must be parallel and point in the same direction.

C.vectors A and B must be parallel but point in opposite directions.

D. vectors A and B must be at right angles.




3548

Physics Vectors Level: University

Three vectors A B and C together to yield zero: A + B + C  = 0. The vectors A and C point in opposite directions and their magnitudes are related by the expression: A = 2c. Which one of the following conclusions is current?
a. A and B have equal magnitudes and point in opposite directions
b. B and C have equal magnitudes and point in same direction.
c. B and C have equal magnitudes and point in opposite directions.
d. A and B point in the same direction but C has twice the magnitude of B.
e. B and C point in the same direction but C has twice the magnitude of B .



3386

Physics Vectors Level: High School

If the magnitude of the product A x B is equal to the AB , then

a) Vector A and B cannot be in the same plane .

b) Vector A and B must be parallel and point in the same direction .

c) Vector A and B must be parallel but point in opposite directions .

d) vector A and B must be at right angles .




3378

Physics Vectors Level: High School

A vector has an x-component of -25.0 units and a y-component of 40.0 units . Find the magnitude and direction of the vector .



3377

Physics Vectors Level: High School

A person walks 25.0 degrees north of east for 3.10 km . How far would the person walk due north and due east to arrive at the same location ?



3376

Physics Vectors Level: High School

An airplane flies 200 km due west from city A to city B and then B then 300 km in the direction of 30.0 degrees north of west from city B to city C .

a) In straight-line distance ,how far is city C from city A ?

b) Relative to city A , what direction is city C ?




2989

Physics Vectors Level: High School

Pascal’s Law

In a hydraulic lift , the radii of the pistons are 2.98 cm and 10.8 cm. A car weighing W = 8.5 kN is to be lifted by the force of the large piston .

a) What force Fa must be applied to the small piston ?

b) When the small piston is pushed in by 9.8 cm, how far is the car lifted ?




2837

Physics Vectors Level: High School

Vector

Find the scalar product of the vectors in figure at “click here” , where theta = 121 degree and F = 33.5 N .



2669

Physics Vectors Level: High School

Which of the following quantity is a vector ?

Distance

Mass

Force

Speed

Force



2663

Physics Vectors Level: High School

Three vectors A , B , C are such that A + B = C and A2 + B2 = C2 . Which of the following statement is correct .

A and B are equal in magnitude

A and B are parallel

A is perpendicular to B

None of the listed

A is perpendicular to B



2651

Physics Vectors Level: High School

A force of magnitude 24 N makes an angle of 225 degree with the positive x axis . Find the x and y scalar components of the vector .

-12 N , -12 N

24 N , 24 N

-24 N , 24 N

-24 N , -24 N




2635

Physics Vectors Level: High School

A 5.50 kg penguin runs onto a huge sheet of frictionless Antarctic ice . At t = 0 and y = 0 with an initial velocity of 0.37 m/s along the positive x-axis . It slides while being pushed by the wind with a force of 0.53 N directed along the positive y-axis . Calculate the magnitude of the penguin’s velocity at t = 11.69 s .

a) 1.19 m/s

b) 1.48 m/s

c) 1.85 m/s

d) 2.32 m/s

e) 2.89 m/s




2548

Physics Vectors Level: High School

Vector A is 3.1 m north , and vector B is 3.1 m east . Vector A-B is ?

a) zero

b) 4.4 m at 45 degrees south of east

c) 4.4 m at 45 degrees south of west

d) 4.4 m at 45 degrees north of west

e) 4.4 m at 45 degrees north of east




2517

Physics Vectors Level: High School

Resolution of Vector

A box sits on the ground with a rope attached to it . A child pulls on the rope with a force of 20 Newton’s, at an angle of 20 degrees above the horizontal. Determine the magnitude of the x and y components of the force .



2516

Physics Vectors Level: High School

Resolution of Vector

A box is pulled up a 30 degree ramp , when it has moved 2 meters along the incline , what distance x has it moved in the horizontal direction , and what is its distance y above the horizontal ground ?

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