A rocket with a lift-off mass $3.5 \times 10^4 kg$ is blasted upwards with an initial acceleration of $10 m/s^2$. Then the initial thrust of the blast is :

Question

( A ) $1.75 \times 10^5 N$
( B ) $3.5 \times 10^5 N$
( C ) $7.0 \times 10^5 N$
( D ) $14.0 \times 10^5 N$