Final Jeopardy Question Horizontal Problems Components 100
Relative Velocity 500 400 300 200 100 200 300 400 500 Projectiles
Launch at An Angle
Slide 4
Which of the following plays a determining factor in the time
of travel for a projectile? a.Horizontal speed b.Horizontal
displacement c.Vertical displacement d.Acceleration due to gravity
Back Horizontal Problems 100 pts
Slide 5
C and D Back Horizontal Problems 100 pts Answer
Slide 6
Which of the following remains unchanged as an object travels
along a trajectory? a.Vy, b. Vx, c. Y position, d. X position, e. a
x f. a y Back Horizontal Problems 200 pts
Slide 7
Back Horizontal Problems 200 pts V x, a x, a y
Slide 8
Back Predict the path of an object dropped from an airplane
would take. A. B. C. D. E.
Slide 9
Back Horizontal Problems 300 pts A.
Slide 10
Back Horizontal Problems 400pts An object is thrown off a 20 m
cliff with a Velocity of 2 m/s. How much time was the Object in the
air?
Slide 11
Back Horizontal Problems 400 pts Answer 2s
Slide 12
Back Horizontal Problems 500 pts An object is thrown off a 10 m
cliff with a Velocity of 2 m/s. How for does it move in the
horizontal direction?
Slide 13
Back Horizontal Problems 500pts Answer 4m
Slide 14
A runner moves 3 km E and then 4 km N. What is the runners
displacement? Back Components 100pts
Slide 15
5km at 53 degrees. Back Components 100 pts
Slide 16
Back Components 200 pts A person is shot out of a cannon with
an initial Velocity of 3m/s at an angle 20 degrees. Determine the
components a.Vx b.Vy
Slide 17
Back Components 200pts Answer Vx = 2.8 Vy = 1.02
Slide 18
A airplane flies with a speed of 40 m/s 20 NE. What is the
Northern component? Back Components 300pts
Slide 19
Back Components 300 pts 13.7m/s
Slide 20
Back What are the acceleration components for a projectile?
Components 400 pts
Slide 21
Ax = 0 m/s/s Ay = 9.8 m/s/s Back Components 400 pts Answer
Slide 22
Back Components 500 pts What are the velocity components at the
Top of a trajectory for an object launched At an angle of 20
degrees with an initial Velocity of 35m/s?
Describe what happens to the velocity components of an object
launched at an angle as it travels along its trajectory. Back
Projectiles At an angle 100 pts
Slide 25
The horizontal component remains Unchanged, and the vertical
Component changes at a rate of 9.8 m/s every second towards the
earth Back Projectiles 100 pts Answer
Slide 26
Back Determine the total time a projectile is in the Air if it
was shot at a 45 degree angle with an initial velocity of 22 m/s
landing at the same Height it started? Projectiles 200pts
Slide 27
Back Use y-yi = 0 =vyi*t + 1/2gt^2 t= 2Vyi/g =3.4 s Projectiles
200pts Answer
Slide 28
Back Projectiles 300pts Determine the range of a project if it
was shot at a 45 degree angle with an initial velocity of 22 m/s
landing at the same Height it started?
Slide 29
Back Projectile 300pts Answer X-Xi = Vx t X = (22 cos 45)(3.4s)
X =620 m
Slide 30
Back Projectiles 300 Determine the max height of a projectile
if it was shot at a 45 degree angle with an initial velocity of 22
m/s?
Slide 31
Projectile 400pts Y-0 = -Vyi 2 /2g or Y-0 = Vyi*t 1/2 g t 1/2 2
Y = -(22Sin45) 2 /2g =12.34 m Back
Slide 32
Projectile 500 pts Determine the total time and range of a
projectile shot from a 20 m high cliff at a 45 degree angle with an
initial velocity of 22 m/s landing on the ground below?
Slide 33
Time = X-Xi = Back
Slide 34
A man walks east at 5m/s on a moving walkway that is moving
3m/s east. What is the mans velocity relative to a stationary
observer? Back Relative Velocity 100 pts
Slide 35
8m/s? Back
Slide 36
A man walks at a speed of +4 m/s relative A man who is walking
towards him moving At -1 m/s relative to a stationary observer.
What is the firsts mans speed relative to the Stationary observer?
Back
Slide 37
Relative Velocity 200 pts +3m/s
Slide 38
A boat in still water takes 40 s to cross a 30m wide river. If
the current in this river is moving downstream at 1m/s what is the
boats velocity relative to a person standing on the shore?
Back
Slide 39
1.25 m/s at 53 SE
Slide 40
Back Two men moving at 6m/s step on to a moving walkway on
opposite ends. The velocity is 4m/s east and is 10m long. What is
the relative speeds of the men with respect to a stationary
observer?
Slide 41
10 m/s east 2 m/s west Back
Slide 42
Two men moving at 6m/s step on to a moving walkway on opposite
ends. The velocity is 4m/s east and is 10m long. How much time does
it take for the men to meet?