Figure shows the velocity time curve for a particle travelling along a straight line. Find the distance covered in 6 seconds and the displacement in 6 seconds
Answers
Answer:
Distance = 12 m
Displacement = 6 m
i am not sure about this answer.
Explanation:
CASE 1 DISPLACEMENT IS GIVEN BY
u = 0 m/s AREA OF GRAPH
v = 2 m/s CASE 1
t = 2s 1/2 x 2 x 2 = 2
v = u + at
2 = 0 + 2a
a = 1 S = ut + 1/2 a
S = 2 m
CASE 2 CASE 2
u = 2 m/s 2 x 2 = 4
a = o
t = 4s
S = 2 x 4 + o = 8 m
CASE 3 CASE 3
u = 2 m/s 1/2 x 1 x 2 = 1
v = 0 m/s
0 = 2 + a x 1
a = -2 S = 2 x 1 + 1/2 x -2 x 1
S = 1 m
CASE 4 CASE 4
u = 0 m/s 1/2 x 1 x -2 = 1
v = 2 m/s
2 = 0 + a x 1
a = 2 S = 1/2 x -2 x 1
S = 1 m
TOTAL DISTANCE = 12 m TOTAL DISPLACEMENT = 6 m
(SIGN IS NOT TO BE TAKEN (SIGN IS TO BE TAKEN
WITH DIP IN GRAPH AS WITH DIP IN GRAPH
DISTANCE WON'T AS DISPLACEMENT
DECREASE WITH TIME) CAN BE NEGATIVE)