Relative Motion Problem: Solving for the angle of the moving object

What is the initial speed of the toy car relative to the paper?

• 29 millimeters per second

• 47 millimeters per second

• 38 millimeters per second

• 36 millimeters per second

In which direction is the paper moving relative to the Earth?

• North

• South

• West

• East

What is the purpose of reversing the direction of a vector in relative motion problems?

• To reverse the order of the subscripts and direction

• To simplify the equation

• To change the magnitude of the vector

• To eliminate the vector from the equation

What trigonometric function is used to solve for Theta in this problem?

• Cosine

• Tangent

• Sine

• Cotangent

What is the calculated angle Theta for the car to move north relative to the Earth?

• 29 degrees

• 47 degrees

• 38 degrees

• 36 degrees

What theorem is used to calculate the speed of the car relative to the Earth?

• Law of Cosines

• Pythagorean theorem

• Triangle Inequality Theorem

• Law of Sines

Why is the magnitude of the car's velocity relative to the Earth less than its velocity relative to the paper?

• Due to the increase in velocity in the Y direction

• Because the paper is moving faster

• Due to the cancellation of velocities in the X direction

• Because the car is moving slower