Random
Avg Velocity and Angles
Projectile Motion
Equations
Potent Practice (sig figs)
100
A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. This is the acceleration of the car.
What is 11.2 m/s/s ?
100
A train goes 80. km in 1.0 hr, 25km in .50 hr, and 40 km in the last 2.5 hrs of a trip. The average speed of the train is this.
What is 36 km/hr?
100
This is the acceleration of any vector falling freely in the vertical direction.
What is acceleration due to gravity or 9.81 m/s2?
100
This is how you find the velocity using a distance-time graph
What is slope (rise/run)?
100
Find the acceleration of a car that starts from rest and speeds up to 25 m/s over 10 m.
What is 30 m/s2?
200
Two objects of different masses will fall at the same rate toward earth UNLESS acted on by this force. (HINT: Feather vs. Hammer)
What is air resistance or air friction?
200
This angle would produce the greatest horizontal distance in a projectile.
What is 45 degrees?
200
A diver running 1.6m/s dives out horizontally from the edge of a vertical cliff and reaches the water 3.0s later. This is the distance away from the cliff they landed.
What is 4.8 m?
200
This is how you find average speed.
What is distance/time?
200
This is the initial velocity of a football with a vertical component of 4 m/s and a horizontal component of 3 m/s.
What is 5 m/s?
300
The initial velocity is this when at rest.
What is 0?
300
What angle would produce the greatest time in flight for a projectile?
What is 90 degrees
300
A tiger leaps horizontally from a 12m high rock with a speed of 4.5 m/s. This is the tiger's time in flight.
What is 1.6 s?
300
This formula is used to calculate the time in flight. Provided you have distance, acceleration and initial velocity.
What is d = vit + .5at2 ?
300
This is your total displacement after jogging the length of a soccer field down and back three times.
What is 0?
400
This is determined from taking the change in velocity divided by the change in time.
What is acceleration?
400
A ball is kicked with initial velocity of 45 m/s at a angle of 35 degrees. This is the vertical component for initial velocity.
What is 26 m/s?
400
This is the height of a cliff that a boulder falls off of with a final velocity of 20.0 m/s.
What is 20.4 meters? Or What is 20. meters?
400
This is the equation you use to find the final velocity of an object if given initial velocity, acceleration, and distance.
What is Vf2 = Vi2 + 2ad?
400
This is the time in flight of a person falling off a 300. m cliff from rest with an acceleration of 9.81 m/s^2.
What is 7.82 seconds?
500
A bike accelerates uniformly from rest to a speed of 7.10 m/s over a distance of 35.4 m. Determine the acceleration of the bike.
What is 0.712 m/s/s ?
500
Thelma and Louise drive up a 20. degree ramp with an initial velocity of 50. m/s. This is the horizontal component for velocity
what is 47 m/s?
500
A water balloon is launched horizontally at a height of 1.5 meters above the ground. Its launch speed is 30 m/s. The instant before the balloon hits the ground, its horizontal speed is this.
What is 30 m/s?
500
If given the horizontal and vertical components of a velocity vector, this formula can be used to find the resultant velocity vector.
What is a2 + b2 = c2 or Pythagorean theorem?
or What is Vi = sqrt ( Vx2 + Vy2) ?
500
I am on a foreign planet. From rest, I fall off a 150. m cliff and it takes 200. seconds to land. My acceleration due to gravity on this planet must therefore be this value.
What is .00750 m/s2?