Laws of Motion

Question: A rocket has an initial mass of $20 \times {10^3}\,kg$. If it is to blast off with an initial acceleration of $4\,m{s^{ - 2}}$, the initial thrust needed is $(g\tilde = 10\,m{s^{ - 2}})$

1) $6 \times {10^4}\,N$

2) $28 \times {10^4}\,N$

3) $20 \times {10^4}\,N$

4) $12 \times {10^4}\,N$

Solution:

Explanation: No Explanation

Second Law of Motion NLM

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