Unit 3 - Two-Dimensional Motion: Activity 1 (Flashcardizz)

Front

What is the horizontal component of velocity when a soccer ball is kicked at a 36 degree angle with a velocity of 23 m/s?

Back

18.6 m/s

Front

How long does a cannonball take to hit the ground when fired at a 45.0° angle with an initial velocity of 625 m/s (ignoring air resistance)?

Back

90.2 s

Front

What happens to the acceleration of an object if the mass is increased while the applied force remains constant?

Back

The acceleration decreases.

Front

If an object is stationary, what can be said about the forces acting upon it?

Back

The forces are balanced.

Front

What is the effect on acceleration if the net force acting on an object is halved?

Back

The acceleration is halved.

Front

Define two-dimensional motion.

Back

Motion that occurs in a plane, involving both horizontal and vertical components.

Front

What is the formula for calculating the horizontal component of velocity?

Back

Vx = V * cos(θ), where V is the initial velocity and θ is the angle.

Front

What is the formula for calculating the vertical component of velocity?

Back

Vy = V * sin(θ), where V is the initial velocity and θ is the angle.

Front

What is the significance of the angle of projection in projectile motion?

Back

It determines the range, height, and time of flight of the projectile.

Front

What is the relationship between force, mass, and acceleration?

Back

F = m * a (Newton's Second Law of Motion).