A bullet of mass 0.05kg moving with an initial velocity 100m/s, strikes a wooden block and comes to rest after penetrating a distance 0.02m in it. (i) Initial momentum of the bullet is: a. 0.5 kgm/sb. 10 kgm/sc. 5 kgm/sd. 15 kgm/s(ii)Final momentum of the bullet bea. 0 kgm/sb. 10 kgm/sc. 5 kgm/sd. 15 kgm/s(iii)Retardation caused by the wooden block is: a. 12.5 x 105m/s2 b. 2.5 x 105 m/s2 c. 25 x 105m/s2 d. 10 x 105 m/s2(iv)Resistive force exerted by the wooden block is: a. 25000Nb. 50000Nc. 12500Nd. 6250N(v)The unit of linear momentum is: a. Kg m/s2 b. N.sc. Kg2 m/sd. None of the above
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