57) A mass of 5 kg is attached to the middle of a rope, which is being pulled from both ends in the opposite directions taking g = 10 m/square seconds. The minimum pull required to completely straighten the rope will be

15 N

25 N

35 N

Infinity

Answer is:

Infinity

have different accelerations but same forces acting on them.

have same acceleration but different forces acting on them.

have equal potential energy at any point on the plane.

None of the above

Answer is:

The chip thickness is maximum at the beginning of the cut

Surface finish is better than conventional milling.

Coolant can be applied easily.

All the above are correct

Answer is:

1/8

1/4

1/16

1/2

Answer is:

(4xr)/(3xPi)

(3xr)/(4xPi)

(4xPi)/(4xr)

(3xPi)/(4xr)

Answer is: