explainlsecond law of motion and derive F ma.imtm and write its SI uni

1.	explainlsecond law of motion and derive F ma.imtm and write its SI unit8. Pxu
Answer» According to the Newton’s 2ndLaw of motion, the rate of change of linear momentum of a body is directly proportional to the applied external force and in the direction of force. It means that the linear momentum will change faster when a bigger force is applied. Consider a body of mass ‘m’ moving with velocity v. The linear momentum of a body is given by: p = mv Now According to Newton’s 2ndLaw of Motion: Force is directly proportional to rate of change of momnetum, that is F α dp/dt F = k dp/dt F = k d(mv)/dt F = k md(v)/dt F = k ma Experimentally k =1 F = k ma Which is the required equationof force.

explainlsecond law of motion and derive F ma.imtm and write its SI unit8. Pxu

Answer»

According to the Newton’s 2ndLaw of motion, the rate of change of linear momentum of a body is directly proportional to the applied external force and in the direction of force.

It means that the linear momentum will change faster when a bigger force is applied.

Consider a body of mass ‘m’ moving with velocity v.

The linear momentum of a body is given by:

p = mv

Now According to Newton’s 2ndLaw of Motion:

Force is directly proportional to rate of change of momnetum, that is

F α dp/dt

F = k dp/dt

F = k d(mv)/dt

F = k md(v)/dt

F = k ma

Experimentally k =1

F = k ma

Which is the required equationof force.

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