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(a) State the Law of Conservation of Momentum. Deduce it from Newton’s second law of motion. (b) Give reason for the following: (i) An air-filled balloon rise up slightly when punctured from below? (ii) A swimmer push water backward with his hands, in order to swim in forward direction?

(a) State the Law of Conservation of Momentum. Deduce it from Newton’s second law of motion. (b) Give reason for the following: (i) An air-filled balloon rise up slightly when punctured from below? (ii) A swimmer push water backward with his hands, in order to swim in forward direction?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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  1. (a) State the Law of Conservation of Momentum. Deduce it from Newton’s second law of motion.

(b) Give reason for the following:

(i) An air-filled balloon rise up slightly when punctured from below?

(ii) A swimmer push water backward with his hands, in order to swim in forward direction?

A slab of stone of area 0.36 m² and thickness 0.1 is exposed on the lower surface to steam at 100°C. A block of ice at 0°C rests on the upper surface of the slab. In one hour 4.8 kg of ice is melted. The thermal conductivity of slab is- (Given latent heat of fusion of ice = 3.36 × 10° J kg-') (1) 1.29 J/m/s°C (2) 2.05 J/m/s"C (3) 1.02 J/m/s/"C (4) 1.24 J/m/s/"C
Transcribed Image Text:A slab of stone of area 0.36 m² and thickness 0.1 is exposed on the lower surface to steam at 100°C. A block of ice at 0°C rests on the upper surface of the slab. In one hour 4.8 kg of ice is melted. The thermal conductivity of slab is- (Given latent heat of fusion of ice = 3.36 × 10° J kg-') (1) 1.29 J/m/s°C (2) 2.05 J/m/s"C (3) 1.02 J/m/s/"C (4) 1.24 J/m/s/"C
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