Vectors
Projectiles
Kinematics
100
Which of the following cannot be represented using a vector diagram? A) Distance B) Displacement C) Velocity D) Acceleration
Distance
100
The yellow vector represents the projectile's...
acceleration
100
Which kinematic equation would you use if you need to find final velocity but do not have a displacement.
vf = vi + at
200
The red vector is called the ______.
Resultant
200
A projectile continues moving in the horizontal direction due to...
Inertia
200
Kinematic equations can only be used when ___ is constant.
Acceleration
300
The vertical and horizontal components for this vector above would be...
vertical: 14
horizontal: 11
300
A projectile's velocity in the vertical direction will decrease by how much every 1 second?
9.8 m/s
300
Find the displacement of an object dropped from rest 4 seconds after it has fallen (use -9.8 m/s2 as g).
-78.4 meters
400
The resultant of a, b, and c would be...
9.0
400
A cannonball is launched horizontally at 70 m/s and follows the black line trajectory below. After 3 seconds, the cannonballs horizontal velocity will be...
70 m/s
400
Find the acceleration of a car that starts from rest and reaches a velocity of 54 mph in 4.5 seconds.
12 mph/sec
500
The sum of these two vectors is...
15.8
500
A cannonball is launched horizontally at 80 m/s and follows the black line trajectory below. How far VERTICALLY has the cannonball gone after 2 seconds? (you need to use kinematics; )
19.6 meters downwards
500
A frog jumps straight upwards at 5.0 m/s. How high is he when he is travelling at 4.0 m/s upwards?
0.46 meters