Laws of Motion

JEE Main level, single correct, medium

66 of 210

Question 66 of 210

A rocket with a lift-off mass 3.5×104 kg3.5 \times 10^4 \mathrm{~kg} is blasted upwards with an initial acceleration of 10 m/s210 \mathrm{~m} / \mathrm{s}^2. Then the initial thrust of the blast is

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Answer: (A) 3.5×105 N3.5 \times 10^5 \mathrm{~N}

Thrust == Mass ×\times Acceleration =3.5×104×10=3.5×105 N=3.5 \times 10^4 \times 10=3.5 \times 10^5 \mathrm{~N}

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