Question

The adjoining curve represents the velocity-time graph of a particle, its acceleration values along OA, AB and BC in metre/sec² are respectively

• A. 1, 0, – 0.5
• B. 1, 0, 0.5
• C. 1, 1, 0.5
• D. 1, 0.5, 0

Answer 1

Answer: (A)

1, 0, – 0.5

Answer 2

Acceleration along OA $= \frac { v _ { 2 } - v _ { 1 } } { t } = \frac { 10 - 0 } { 10 } = 1 \mathrm {~m} / \mathrm { s } ^ { 2 }$

Acceleration along OB $= \frac { 0 } { 10 } = 0$

Acceleration along BC $= \frac { 0 - 10 } { 20 } =$ – 0.5 m/s²