Question

Q3.




Answer the following questions
What does AB,BC and CD represent ?
Calculate acceleration and retardation
(c)What is the distance covered between 0 to 150 secs and 300 to 350 secs ?​

Answer 1

Answer:

Explanation:

AB represents the particle is moving with some acceleration.

BC represents the velocity and acceleration of body remains constant

CD represent particle velocity and acceleration both negative.

ACCELERATION

SLOPE OF AB

Y2-Y1/X2-X1

30 - 10 / 200- 150

20/50

.4 M/SEC*2

RETARDATION

SLOPE OF CD

Y2-Y1/X2-X1

30-5/350-300

25/50

.5m/sec*2

DISTANCE COVERED BETWEEN 0 TO 150 SEC

area of square

10×150

1500m*2

Distance covered in 300 to 350 seconds

Are under triangle

1/2 ×50×20

50×10

=500 m*2

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