Question

20 N effort is used in the 20 cm long spanner to unscrew a nut then calculate momentum to unscrew the nut​

Answer 1

Answer:

• Total time duration for which the torque is being applied is to be mentioned.
• Amount of rotation achieved by applying this torque is to be mentioned.
• If you are really interested in knowing in knowing the smaller details about the energy spend, then stiffness of all the mechanical elements involved should be mentioned. This is required for calculating the strain energy stored and later released as heat energy.
• Coefficient of friction between the spanner and nut head / bolt head and between nut and bolt should be mentioned.

Answer 2

Answer:

Answer is 4Nm how lets see..

Explanation:

Here, we are given, effort as 20 N and moment arm as 20cm,

Then, 20cm = 20/100 m = 0.2m

Now, Force = 20 N

Also, Moment  = Force x distance

                       = 20 x 0.2 Nm

                       = 4Nm

Therefore, the moment is 4Nm.

Hope it Helps you