Forces
An object is on a rotating platform what holds the object on the platform?
Centripetal force of Friction
If going around a circular corner what supplies the Fcp? Draw the FBD
Friction
Ffo->
A ball is thrown at a 65 degree angle to land in a cup that is 12 meters away. The balls speed is 10 m/s. How high will the ball be thrown and how long will it take fo it to land in the cup?
what is t= 2.9 seconds and 35 m
What is the equation that would be useful for finding the height an object is going to fall from?
The equation for velocity is
what is 2(pi)r/t
Centripetal force must be present in a circular motion
True
When a car is at the top of a hill which is always true? Draw the FBD
Fn=Fg
^lo
\l/
A cat throws a toy at the 45 degree with an initial velocity of 6m/s and it land 12m away how high did the toy get?
what is t=2.8 and h=40.39
A ball a mass of .5 kg is kicked towards a fence from .18 m away. the velocity of the ball as it leave the kickers foot is 15m/s at an angle of 32 above the horizontal. The top of the fence is 1.4 m high.
whats the time it takes to get to the plane of the fence
what is 1.42s
The equation for centripetal force
what is MV2/r
What type of motion is only subject to gravity
Projectile motion (bonus 50 Only subject to free fall)
Describe the centripetal force
Th emain force is tension
A marble rolls down the beaaring of a ramp and drops down from 91 cm at .912 m/s into a cup placed on the ground. Find the time and the distance to the cup.
what is .43 seconds and 39.2 cm
What is the gravitational constant?
what is 6.67 x 10-11
The equation for Fg is
Fg= Gm1m2/r2
What does centripetal mean
It means center seeking
Draw the FBD for this
T<-o
What centripetal force would be required to keep a penny moving in .5m circle with a mass of 0.06Kg at 5m/s.
3
the pelecan is flyig 2.7 m above the water and is flyng at 7 m/s what is Dx?
What is (7.6)(.74)
The equation for V in a banked turn is
square root tan theta rg
You fill a pail with water and tie it to a two meter long rope and start to swing it in a circle at the top of the circle. The minimum velocity that the water can stay in the bucket. The mass is 5.00kg
what is a minimum velocity of 4.43
What does FBD stand for and why are they important
What is Free Body Diagram and they help visualize and map out forces so we can use equations to figure things out
The mas of a 1* 10^30 kg i in a circular orbit of a planet with a Fg of 2x10^32 what is the centripetal acceleration
what is 200 m/s2
The mean orbital velocity or venus is
What is 35.02
The equation for force of gravity is
what is mg