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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.
Related Questions: - In a tangent galvanometer, a current of 0.1 A produces a deflection of 30⁰.
- A parallel plate condenser with a dielectric of dielectric constant K between the plates
- A bar magnet of pole strength 10 A-m is cut into two equal parts breadthwise.
- A plane wave of wavelength 6250Å is incident normally on a slit of width 2×10⁻² cm.
- Which of the following phenomena does not show the wavenature of light?
Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a tangent galvanometer, a current of 0.1 A produces a deflection of 30⁰.
- A parallel plate condenser with a dielectric of dielectric constant K between the plates
- A bar magnet of pole strength 10 A-m is cut into two equal parts breadthwise.
- A plane wave of wavelength 6250Å is incident normally on a slit of width 2×10⁻² cm.
- Which of the following phenomena does not show the wavenature of light?
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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