Understanding Two-Dimensional Motion

What is the primary difference between one-dimensional and two-dimensional motion?

• Two-dimensional motion involves movement in a straight line.

• One-dimensional motion involves movement in a plane.

• Two-dimensional motion involves movement in a plane.

• One-dimensional motion involves movement in a circle.

In the thought experiment, what shape does the trajectory of the marble take?

• A zigzag

• A circle

• A straight line

• A parabola

What is the term used to describe the motion of an object launched into the air?

• Circular motion

• Linear motion

• Projectile motion

• Rotational motion

What force is primarily responsible for the downward motion of a projectile?

• Friction

• Magnetism

• Gravity

• Air resistance

Why is there no acceleration in the horizontal direction for a projectile?

• Because of friction

• Because of magnetism

• Because of air resistance

• Because gravity only acts vertically

What is the initial vertical velocity of an object launched horizontally?

• Equal to its horizontal velocity

• Zero

• Twice its horizontal velocity

• Equal to gravitational acceleration

Which kinematic equation is used to determine the time a projectile is in the air?

• X final = X initial + Vx initial * t + 1/2 a * t^2

• S = ut + 1/2 at^2

• Y final = Y initial + Vy initial * t + 1/2 a * t^2

• V final = V initial + a * t

What is the approximate height of the Empire State Building used in the calculation?

• 400 meters

• 200 meters

• 500 meters

• 300 meters

How long does it take for the marble to hit the ground from the Empire State Building?

• 11 seconds

• 7 seconds

• 5 seconds

• 9 seconds

What is the calculated time for the marble to fall using the formula derived?

• 11.35 seconds

• 10.35 seconds

• 9.35 seconds

• 8.35 seconds