Kinematics and Motion

Question 1

Distance =

Answer 1

speed x time

Question 2

kmph to ms-1

Answer 2

x1000 /60 /60

Question 3

ms-1 to kmph

Answer 3

/1000 x60 x60

Question 4

uvat

Answer 4

v = u + at

Question 5

suat

Answer 5

s = ut + 1/2 at^2

Question 6

svat

Answer 6

s = vt - 1/2 at^2

Question 7

suva

Answer 7

v^2 = u^2 + 2as

Question 8

suvt

Answer 8

s = 1/2 (u+v)t

Question 9

Differentiation rules for variable acceleration

Answer 9

Differentiate s/x down to get v, v down to get a

Question 10

Distance travelled from a speed time graph

Answer 10

Area under the graph

Question 11

Acceleration from a speed time graph

Answer 11

Gradient of the graph

Question 12

Acceleration in projectiles

Answer 12

Horizontal motion, a = 0
Vertical motion, a = -g

Question 13

How to find speed and direction of motion (projectiles)

Answer 13

Pythagoras for speed, tan-1 for direction

Question 14

Smooth pulley meaning

Answer 14

Tension on either side of the pulley is equal

Question 15

Light string meaning

Answer 15

Tension is equal throughout the string

Question 16

Inextensible string meaning

Answer 16

Both particles have the same acceleration

Question 17

Particle meaning

Answer 17

Ignore air resistance, ignore rotational effects