U8: Review, Inquiry, FBD Drawing, Trig

Front

What is the formula to calculate the horizontal component of a projectile's initial velocity?

Back

The horizontal component (Vx) can be calculated using the formula: Vx = V * cos(θ), where V is the initial velocity and θ is the angle of projection.

Front

What is the formula to calculate the vertical component of a projectile's initial velocity?

Back

The vertical component (Vy) can be calculated using the formula: Vy = V * sin(θ), where V is the initial velocity and θ is the angle of projection.

Front

What is the acceleration due to gravity (g) on Earth?

Back

The acceleration due to gravity (g) on Earth is approximately 9.81 m/s².

Front

How does the angle of projection affect the range of a projectile?

Back

The range of a projectile is maximized at a projection angle of 45 degrees, assuming no air resistance.

Front

What is the relationship between mass and acceleration in Newton's second law of motion?

Back

According to Newton's second law, the acceleration (a) of an object is directly proportional to the net force (F) acting on it and inversely proportional to its mass (m): F = m * a.

Front

What is the effect of increasing the angle of a rope on the acceleration of an object being pulled?

Back

Increasing the angle of the rope decreases the horizontal component of the tension force, which in turn decreases the acceleration of the object.

Front

What is the principle of equilibrium in physics?

Back

An object is in equilibrium when the net force acting on it is zero, meaning all forces are balanced.

Front

What is the formula for calculating the net force acting on an object?

Back

The net force (F_net) can be calculated using the formula: F_net = F_applied - F_friction - F_gravity, where F_applied is the applied force, F_friction is the frictional force, and F_gravity is the weight of the object.

Front

What is the significance of the vertical component of thrust in a helicopter?

Back

The vertical component of thrust must equal the weight of the helicopter for it to maintain a constant altitude.

Front

How do you calculate the resultant force from its components?

Back

The resultant force (R) can be calculated using the Pythagorean theorem: R = √(Fx² + Fy²), where Fx and Fy are the horizontal and vertical components of the force, respectively.