Work done (W) = $\vec{F} \times \vec{x} = (-2\hat{i} + 3\hat{j}) \times (3\hat{i}) = -6 \text{ J}$.
Work-energy theorem: W = ΔKE = KEf - KEi = -6 J = KEf - 10 J KEf = 4 J
List I | List II | ||
A | Down’s syndrome | I | 11th chormosome |
B | α-Thalassemia | II | ‘X’ chromosome |
C | β-Thalassemia | III | 21st chromosome |
D | Klinefelter’s syndrome | IV | 16th chromosome |
The velocity (v) - time (t) plot of the motion of a body is shown below :
The acceleration (a) - time(t) graph that best suits this motion is :