Answer to Question #153849 in Physics for Wesley Michailidis

Question #153849

A metal block with a mass of 5.2 kg is pushed east along a flat surface with a force of 4.0 N. IF the force of friction is 2.0 N , draw a FDB of the situation, and calculate the net force on the metal block.


1
Expert's answer
2021-01-10T18:30:04-0500

Let's draw a free-body diagram:



here, Fp=4.0 NF_p=4.0\ N is the horizontal force that pushes a metal block to the east, Ffr=2.0 NF_{fr}=2.0\ N is the force of friction, FNetF_{Net} is the net force on the metal block.

Then, we can calculate the net force on the metal block:


FNet=FpFfr=4.0 N2.0 N=2.0 N.F_{Net}=F_{p}-F_{fr}=4.0\ N-2.0\ N=2.0\ N.

Answer:

FNet=2.0 N.F_{Net}=2.0\ N.


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