मराठी

An Effort is Applied on the Bigger Wheel of a Gear Having 32 Teeth. It is Used to Turn a Wheel of 8 Teeth. Where It is Used. - Physics

Advertisements
Advertisements

प्रश्न

An effort is applied on the bigger wheel of a gear having 32 teeth. It is used to turn a wheel of 8 teeth. Where it is used.

उत्तर

The number of teeth in the driving wheel is nB = 32 and that in the driven wheel is nA = 8. Hence, this system is used to obtain the gain in speed

The Gain in speed  = `n_B/n_A`= `32/8 = 4`

shaalaa.com
Moment (Turning Effect) of a Force Or Torque
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2015-2016 (March) Science Paper 1

संबंधित प्रश्‍न

What do you mean by the clockwise and anti-clockwise moment of force?


Find the moment of force of 20 N about an axis of rotation at distance 0.5 m from the force.


What are non-contact forces? Give two example


A car of mass 600 kg is moving with a speed of 10 m-1 while a scooter of mass 80 kg is moving with speed of 50 m s-1. which vehicle will require more force to stop it in the (1) same interval of time (2) same distance


A nut is opened by a wrench of length 10 cm. if the least force required is 5.0 N. find the moment of force needed to turn the nut.


The diagram shows two forces F1 = 5 N and F2 = 3N acting at point A and B of a rod pivoted at a point O, such that OA = 2m and OB = 4m

Calculate:

  1. Moment of force F1 about O
  2. Moment of force F2 about O
  3. Total moment of the two forces about O.

The figure shows two forces each of magnitude 10 N acting at the point A and B at a separation of 50 cm, in opposite directions. Calculate the resultant moment of two forces about the point.

  1. A,
  2. B and
  3. O situated exactly at the middle of the two forces.


Fig.  shows a uniform meter scale weighing 100 N pivoted at its centre. Two weights of 500 N and 300 N are hung from the ruler as shown in fig.

(i)    Calculate total clockwise and anticlockwise moments.
(ii)    Calculate difference in clockwise moment and anticlockwise moment.
(iii)    Calculate the distance from O where a 100 N weight should be suspended to balance the meter scale.


The diagram shows a uniform metre rule weighing 100gf, pivoted at its centre O. Two weights 150gf and 250gf hang from the point A and B respectively of the metre rule such that OA = 40 cm and OB = 20 cm. Calculate :

the total clockwise moment about O


State one factor on which the magnitude of a non-contact force depends. How does the magnitude of a non-contact force change along with distance?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×