EWT | Academic Question

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Question (1)
QN0035093

Match the column I and II.

Column I

(A) Inertia

(B) Recoil of gun

(C)

(D) Weight

Column II

(1)

(2) mass  acceleration

(3) Newton's third law of motion

(4) Newton's first law of motion

  
  • (A)

    (A)  (4); (B) ; (D)  (3)

  • (B)

  • (C)

    (A)  (3); (B)  (2);  (4); (D)  (1)

  • (D)

    (D)  (3)

Correct Answer: B
Explanation:

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Question (2)
QN0035094

Match the column I and II.

Column I

(A) Accelerated motion

(B) Action & Reaction

(C) Inertia

(D) Momentum

Column II

(1) Acts on two different bodies

(2) Inability to change the state

(3)  

(4) Variable velocity

  • (A)

    (A)  (4); (B)  (2); (D)  (3)

  • (B)

  • (C)

  • (D)

Correct Answer: B
Explanation:

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Question (3)
QN0035095

A light string  whose extremity  is fixed, has weights  and  attached to it at  and . It passes round a small smooth peg at  carrying a weight of  at the free end  as shown in figure. If in the equilibrium position,  is horizontal and  and  make  and  with . Match the columns :

Column I

(A) Tension in portion

(B) Tension in portion

(C) Weight,

(D) Weight,

Column II

(1)

(2)

(3)

(4)

  • (A)

    (A)  (4); (B)  (1);  (2); (D)  (3)

  • (B)

  • (C)

    ; (D)  (3)

  • (D)

    ; (D)  (2)

Correct Answer: A
Explanation:

Applying Lami's equation, we have   and  

After simplifying, we get

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Question (4)
QN0035096

Match the column I and II.

Column I

(A) Rocket's work

(B)

(D) Constant force
(C) Contact force

Column II

(1) Friction

(2) Uniform motion

(3) Conservation of momentum

(4) Newton's second law

  • (A)

    (A)  (4); (B) ; (D)  (3)

  • (B)

    (A)  (4); (B)  (3);  (1); (D)  (2)

  • (C)

    (D)  (2)

  • (D)

Correct Answer: C
Explanation:

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