Laws of Motion-Force and Inertia (NEET Physics): Questions 55 - 56 of 56

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Question number: 55

» Laws of Motion » Force and Inertia


Assertion (Ꭺ)

Block A is moving on horizontal surface towards right under the action of force F. All surfaces are smooth. At the instant shown the force exerted by block A on block B is equal to net force on block B.

Reason (Ꭱ)

From Newton’s third law of motion, the force exerted by block A on B is equal in magnitude to force exerted by block B on A.

Net force acting on each of block A and B

Net Force Acting on Each of Block a and B

Finding force and acceleration on both blocks A and B


Choice (4) Response
a. Both Ꭺ and Ꭱ are false
b. Ꭺ is true but Ꭱ is false
c. Ꭺ is false but Ꭱ is true
d. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 56

» Laws of Motion » Force and Inertia



A rope of length 15 m and linear density 2 kg/m is lying length wise on a horizontal smooth table. It is pulled by a force of 25 N. The tension in the rope at the point 7 m away from the point of application, will be –


Choice (4) Response

36.67 N


13.33 N


11.67 N

d. All of the above

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