The position-time graph of a particle of mass 0.1 kg is shown. The impulse at t = 2s is :

Options

A. 0.2 kg m `s^(–1)`
B. – 0.2 kg m `s^(–1)`
C. 0.1 kg m `s^(–1)`
D. – 0.4 kg m `s^(–1)`

Answer

B