Question

The spring balance which will give the most accurate reading on using it in the exp. To establish relationship btw the weight of rectangular wooden block lying on a horizontal table and the force required to just move it should have the least count
B. 5 g weight
D. 0.5 g weight
A. 1g weight
C.2g weight
Ans bhej do plz

Answer 1

Answer on Question # 46927, Physics, Mechanics | Kinematics | Dynamics

Task:

The spring balance which will give the most accurate reading on using it in the exp. To establish relationship between the weight of rectangular wooden block lying on a horizontal table and the force required to just move it should have the least count

B. 5 g weight

D. 0.5 g weight

A. 1 g weight

C. 2 g weight

Answer:

When body is at rest,

Normal reaction = weight of the body

Applied force = force of friction

Suppose a body of mass ‘m’ is moving by the application of a force ‘F’, then the produced acceleration ‘a’ will be directly proportional to the applied force.

when force (F) increased to a certain value such that the body starts moving in the direction of applied force, then Applied force > force of friction.

relationship between the weight of rectangular wooden block lying on a horizontal table and the force required to just move : F/μ>mg, μ is coefficient of friction of block with the surface(μ=0.25) so answer is D. 0.5 g weight.

https://www.AssignmentExpert.com