A rocket which has a mass

Question:

A rocket which has a mass of $3.5 \times 10^{4} \mathrm{~kg}$ is blasted upwards with an initial acceleration of $10 \mathrm{~m} / \mathrm{s}^{2}$. Then the initial thrust of the blast is-

  1. $3.5 \times 10^{5} \mathrm{~N}$

  2. $7.0 \times 10^{5} \mathrm{~N}$

  3. $14.0 \times 10^{5} \mathrm{~N}$

  4. $1.75 \times 10^{5} \mathrm{~N}$

Correct Option: , 2

Solution:

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