The motion of a particle of mass m is given by x=0 for t<0 s, x(t)=A sin 4πt for 0<t<(1/4)s (A>0), and x=0 for t>(1/4) s. Then:
(a) | The force at t=(1/8) s on the particle is −16π2Am |
(b) | The particle is acted upon by an impulse of magnitude 4π2Am at t=0 s and t=(1/4) s |
(c) | The particle is not acted upon by any force |
(d) | The particle is not acted upon by a constant force |
(e) | There is no impulse acting on the particle |
Which of the following statement/s is/are true?
1. | (a, c, d, e) | 2. | (a, c) |
3. | (b, c, d) | 4. | (a, b, d) |
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