1.

A rocket with a lift- off mass \[3.5\times {{10}^{4}}\]\[kg\] is blasted upwards with an initial acceleration of \[10m/{{s}^{2}}.\] Then the initial thrust of the blast is                                [AIEEE 2003]

A.             \[1.75\times {{10}^{5}}N\]
B.               \[3.5\times {{10}^{5}}N\]
C.             \[7.0\times {{10}^{5}}N\]
D.               \[14.0\times {{10}^{5}}N\]
Answer» D.               \[14.0\times {{10}^{5}}N\]


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