Question

'In a tug-of-war, when the two teams are pulling the rope, a stage comes when the rope does not more to ai ther side at all Which of the following is the correct reason for this? (A) Both teams have the same number of members (B) There is a lot of competition going on between the two teams (C) The net force of forces acting in opposite directions is equal to the difference between the two forces (D) The not force of forces acting in opposite directions is oqual to the rim of the two forces Which of the following does not happen due to friction? (A) A nail is fixed in the wall (B) fire can be produced with a matchstick () heat is produced (D) durability of chappals increases. 3 a 4 Which of the following are the benefits of special shape of an aeroplane? Fluid friction is reduced () Fluid friction is noased. (21) Energy loss is as low as possible () An ac oplang can fly like a bud S 6 (A) (1). (1) (B) (1), (2). (111) (0 ). (il). (ku) (D) (1) (1) (1) (1) Which of the following musical in ruments wes nur column to produce sound (A) Vona (B) manera cymbala) (Flute (D) tabla Which of the following is false for londness of cod and anplinade of vibration! (A) Loudness of sound depends on its implitude of the vibration (B) Loudness of a sound is proportional to the square of the amplitude of the vibration producing the sound ( When the amplitude of vibratica is large, the sound produced is load (D) If the amplitude of vibration is increased to 1 mesoi in ital value than the loudess of sound becomes 6 times of its initial salg Due to which of the following reasons Chromium plating is done on score objects Bedin een day for (1) Chromius is cheaper Chromum has a shiny appearance ( Chromium does not commode (v) Christus scratches A) (1). (L) 2 B ) ) ) 7​

Answer 1

Answer:

In a reversible physical change, the original form of the matter can be restored. In an irreversible physical change, the original form cannot be restored. Melting ice and grinding wood into sawdust are examples of physical changes.

Answer 2

Answer:

(C) The net force of forces acting in opposite directions is equal to the difference between the two forces

Explanation:

since force was equal in both directions

net force = 0

so, rope will be stationary in that case