Universal Gravitational Force
This is what happens to the gravitational force between two objects if the mass of one of those objects doubles.
What is the gravitational force doubles?
What is the centripetal acceleration of a ferry boat that makes a turn with a velocity of 10 m/s and a radius of 30 m?
What is 3.33 m/s2
This causes vertigo and vomiting
(Motion sickness is acceptable)
How much force does it take to swing a 10 kg bucket in a circle with a centripetal acceleration of 2 m/s2?
What is 20 N
This is the number of seconds per revolution
What is the period, T?
This is what happens to the gravitational force if the distance between two objects decreases by a factor of 4.
What is the gravitational force becomes 16 times stronger? (inverse square law)
A car is traveling around a turn at 23 m/s. If it is accelerating at 27 m/s2, what is the radius of the turn?
What is 19.6 m
This is the reason that astronauts orbiting the earth experienced weightlessness
What is falling
A person weighing at 64.86 kg is spun in a circle with an acceleration of 10.3 m/s2. What is size of force keeping him in the circle?
What is 668.1 N
This is the reciprocal of the period and has units "revolutions per second"
What is the frequency?
What happens to the gravitational force if one of the masses increases by a factor of 9 and the distance between them triples.
What is no change
An airplane has a velocity of 200 m/s and makes a turn with a radius of 800 m. What is the centripetal acceleration of the plane?
What is 50 m/s2
This is what happens when you horizontally launch a projectile at a speed of 8,000 m/s (8 km/s)
What is becomes a satellite
never returns to earth
curves around the earth
Your 27 kg dog is running in circles around you attached to a leash. You apply 50 N of force on the leash. What is the centripetal acceleration of your dog?
What is 1.85 m/s2
This is the circumference of a circle
What is 2\pi r
To 3 significant figures, this is the gravitational attraction between a 1000 kg object and a 10000 kg object whose distance is 0.1 meter
What is 0.0667 N?
A hamster trips in its wheel that has a radius of 0.15 m. What is the velocity of the hamster if it accelerates at 41.7 m/s2?
What is 2.5 m/s
This is what happens to your height if you stay in the ISS for two years.
What is becomes two inches taller?
How much does a person weigh if they are on a rollercoaster experiencing 34.3 m/s2 of centripetal acceleration and 2200 N of centripetal force to them?
What is 64.1 kg?
A wheel with radius 3 meters makes 20 revolutions is 6 seconds. What is its velocity? Use 3.14 for \pi
What is 62.8 m/s
To 3 significant figures, this is the mass of a person on the ISS if his weight is 900 N. The mass of Earth is 5.97 xx10^24 kg, and the distance between them is 6.78xx10^6 m
What is 104 kg
Tyler is traveling around a bend in a ski slope with a radius of 45 m. His centripetal acceleration is 5 m/s2. How fast is he traveling?
What is 15 m/s
This is what happens to your face if you spend a long time orbiting the earth.
What is becomes puffy?
A merry go round has a velocity of 10 m/s around a circle with a radius of 12 m. If a child has a mass of 40 kg, how much centripetal force is applied to them to keep them on the ride?
What is 333 N
A Ferris wheel with a diameter of 42 meters makes 5 revolutions in 6 minutes. What is its speed in m/s? Use 3.14 for \pi. Answer to 2 decimal places.
What is 1.83 m/s?