Uniform Circular Motion and Law of Universal Gravity

Front

What is the equation to calculate the gravitational force for an object on Earth's surface?

Back

F = mg

Front

What is the formula for centripetal acceleration (a_c) in uniform circular motion?

Back

a_c = \frac{v^2}{r}

Front

What is the direction of the velocity at point B, if the ball is revolving clockwise?

Back

down

Front

What is the formula for calculating centripetal acceleration?

Back

a_c = \frac{v^2}{r}

Front

If Luke Skywalker has a mass of 13 kg and weight of 127.4 N on earth, what is his weight on the Endor moon with an acceleration due to gravity of 2 m/s²?

Back

26 N

Front

Define uniform circular motion.

Back

Uniform circular motion is the motion of an object traveling at a constant speed in a circular path.

Front

What is the relationship between centripetal force and mass in uniform circular motion?

Back

Centripetal force (F_c) is directly proportional to the mass (m) of the object and the square of its velocity (v) divided by the radius (r): F_c = \frac{mv^2}{r}.

Front

What is the formula for gravitational force between two masses?

Back

F = G \frac{m_1 m_2}{r^2}, where G is the gravitational constant.

Front

What is the gravitational constant (G)?

Back

G = 6.674 \times 10^{-11} \text{ N m}^2/ ext{kg}^2.

Front

What is the significance of the radius (r) in circular motion?

Back

The radius (r) is the distance from the center of the circular path to the object in motion, affecting both centripetal acceleration and force.