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A rocket with a lift-off mass 3.5 x 10⁴ kg is blasted upwards with an initial acceleration of 10 m/s². The initial thrust of the blast is
Options
(a) 1.75 x 10⁵ N
(b) 3.5 x 10⁵ N
(c) 7 x 10⁵ N
(d) 14 x 10⁵ N
Correct Answer:
7 x 10⁵ N
Explanation:
Net upthrust = Weight + Blasted force
U = mg + 3.5 × 10⁴ × 10ms⁻²
U = 3⋅5 × 10⁴× 10ms⁻¹ + 3⋅5 × 10⁴ × 10ms⁻²
U = 7⋅0 × 10⁵N.
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- If force(F),velocity(v) and time(T) are taken as units, then the dimensions of mass are
- For a wave propagating in a medium, identify the property that is independent
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle of mass 1mg has the same wavelength as an electron moving with a velocity
- If force(F),velocity(v) and time(T) are taken as units, then the dimensions of mass are
- For a wave propagating in a medium, identify the property that is independent
- In a n-p-n transistor about 10¹⁰ electrons enter the emitter in 2 μs,
- A coil of self-inductance L is connected in series with a bulb B and an AC source
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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