A force of 2i + j - k acts on a body which is initially at rest . If the velocity of the body at the end of 20 sec is 4i + 2j + 2k . The mass of the body is ??? ( use Ft = m.v - m.u )
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A force of 2i + j - k acts on a body which is initially at rest . If the velocity of the body at the end of 20 sec is 4i + 2j + 2k . The mass of the body is ??? ( use Ft = m.v - m.u )
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