| The figure shows the position - time (x - t) graph of one-dimensional motion of the body of mass 0.4 kg. The magnitude of each impulse is [AIEEE 2010] |
 |
A) 0.2 Ns
B) 0.4 Ns
C) 0.8 Ns
D) 1.6 Ns
Correct Answer: C
Solution :
| [c] From graph, |
| \[{{v}_{1}}=1\text{ }m{{s}^{1}},\] \[{{v}_{2}}=1\text{ }m{{s}^{1}}\] |
| \[\therefore \] \[J=\int{F}dt=\int{dp}=m\Delta V\] |
| \[=0.4\times 2=0.8\text{ }N.s.\] |
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