Verify Newtons second law.

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AIM

To verify Newton’s second law and to determine the friction force acting on the wooden block.

        

BACKGROUND THEORY

When a wooden block (cart) slides over a surface, the net force acting on the block is given by,

In the following set up, the applied is given by,

(‘m’ is the mass suspended)

The net force provides acceleration ‘a’ to the wooden block. Hence,

(‘M’ is the mass of the wooden block)

APPARATUS :

Vernier lab pro , photo gates ,  wooden block , string meter scale , standard weights , pulley,  

laser source.

RAW DATA :

Least count of Vernier Lab Pro : 0.000001 s

Uncertainty of Vernier Lab Pro : ± 0.000001 s

Least count of meter scale : 0.1 cm

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Uncertainty of meter scale : ± 0.05 cm

DATA PROCESSING

CONCLUSION & EVALUATION

Now let us compare the acceleration caused due to the force applied.

ACCELERATION  Vs FORCE APPLIED GRAPH

Figure 1 Acceleration Vs Force Applied

ANALYSIS FROM THE GRAPH

  • From the graph the friction force acting on the wooden block is -0.003 N i.e. the Y-intercept of the graph
  • As the force applied is increased ...

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