Question

From the displacement – time graph shown given below calculate:

(i) Velocity between 0 – 2 s.

(ii) Velocity between 8 s – 12 s.

(iii)Average velocity between 5 s – 12 s​

Answer 1

Answer:

1. -7.5 ms^1

2. 1.25 ms^1

3. 2.1 ms^1

Step-by-step explanation:

1. velocity between 0-2 s =

velocity between 0-2 s =- ( 25-10 ) ÷ 2 [negative sign because slope is nagetive]

velocity between 0-2 s =- ( 25-10 ) ÷ 2 [negative sign because slope is nagetive]-15 ÷ 2

velocity between 0-2 s =- ( 25-10 ) ÷ 2 [negative sign because slope is nagetive]-15 ÷ 2-7.5 ms^1

2. velocity between 8 s - 12 s =

25-20 ÷ 12-8 = 5÷4

= 1.25 ms^1

3. Average velocity between 5 s- 12 s =

total displacement from 5s to ÷ time

= 25-10 ÷ 12- 5

= 15÷ 7

=2.1 ms^1