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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 an electrical circuit R,L,C and an AC voltage source are all connected in series.
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In an electrical circuit R,L,C and an AC voltage source are all connected in series.
- A susceptibility of a certain magnetic material is 400. What is the class
- A coil of resistance 10 Ω and an inductance 5 H is connected to a 100 volt
- If emf induced in a coil is 2 V by changing the current in it from 8 A to 6 A
- If the wavelength of incident light falling on a photosensitive material decreases,
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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