U10: Complete Problems 3, Challenge

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration directed towards the center of a circular path that keeps an object moving in that path. It is calculated using the formula a_c = v^2 / r, where v is the velocity and r is the radius of the circle.

Front

How do you calculate the maximum velocity of a car on a curve given the centripetal acceleration?

Back

The maximum velocity (v) can be calculated using the formula v = sqrt(a_c * r), where a_c is the centripetal acceleration and r is the radius of the curve.

Front

What is the coefficient of friction and how does it affect motion?

Back

The coefficient of friction is a numerical value that represents the frictional force between two surfaces. It affects motion by determining how much force is needed to move an object across a surface.

Front

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

Back

The net force (F_net) acting on an object in circular motion is given by F_net = m * a_c, where m is the mass of the object and a_c is the centripetal acceleration.

Front

What is lift force in the context of aviation?

Back

Lift force is the upward force generated by the wings of an aircraft as it moves through the air, allowing it to rise and maintain altitude.

Front

How do you determine the number of revolutions made by an object in circular motion?

Back

The number of revolutions can be calculated using the formula: revolutions = (velocity / circumference of the circle) * time, where circumference = 2 * π * r.

Front

What is the relationship between mass and centripetal force?

Back

Centripetal force is directly proportional to the mass of the object and the square of its velocity, as described by the formula F_c = m * v^2 / r.

Front

What is the significance of maintaining a constant altitude in a banking airplane?

Back

Maintaining a constant altitude ensures that the lift force generated by the wings balances the weight of the airplane, allowing it to fly in a circular path without losing altitude.

Front

What is the formula for calculating centripetal force?

Back

Centripetal force (F_c) can be calculated using the formula F_c = m * a_c, where m is the mass of the object and a_c is the centripetal acceleration.

Front

How does the radius of a circular path affect centripetal acceleration?

Back

Centripetal acceleration is inversely proportional to the radius of the circular path; as the radius increases, the centripetal acceleration decreases for a given velocity.