Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: R

There are no items in this cart.
Continue Shopping
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list

  • Complete Physics Course - Class 11
  • OFFERED PRICE: R 2,800
  • View Details
Get extra R 700 off



In first case, two masses of 1 KG and 2KG are present on opposite sides{ends} of the frictionless pulley.

In second case, a mass of 1KG is on one side and 20 N force is applied on the other side of the pulley.

 What is the difference between the two situations?? PLS EXPLAIN where it matters.......

{TAKE g = 10 m/ sec2}

6 years ago


Answers : (2)


In first case, net force along 2kg block is 20-10=10N. This force causes acceleration of total mass 1+2=3Kg. But, in second case, net force being same, total mass is 1 Kg only. Hence, acceleration is more is second case..... Here is the difference between two situations....

6 years ago

See in the first case , the net force is 20-10  = 10 N and the net mass is 2+1 = 3 kg, Hence the acc. in the first case is 10/3 m/s^2.

In the second case the net force is again 20-10 - 10 N but here the net mass to be moved is only 1 kg . Hence the acc. in this case is 10/1 = 10 m/s^2

6 years ago

Post Your Answer

Other Related Questions on Mechanics

A particle of mass m moves on the x axis as follows : it starts from rest at t=0 from the point x=0, and comes to rest at t=1,at the point x=1 . No other information is available about its...
Heree more than one options seems to be correct. For A - @ cannnot remain positive for all values of 0_ 4 at some point of its path.
Shaswata Biswas one month ago
Sorry the full text didn`t seem to appear. For option A - @ cannot remain +ve for all values of 0_ 4 at sime point of its path.
Shaswata Biswas one month ago
A dog of mass 5kg is resting on a flat boat of mass 20kg . Such that it is 10m from the shore .Boat is resting on frictionless water . The dog walks 4m through the boat towards the shore...
The centre of mass for the system wont change. So 0 = mass of dog x distance moved by dog + mass of boat x distance moved by boat So we find Distance moved by the boat = -1 Thus it will be...
Manas Shukla 5 days ago
a particle of mass 100gm is made to describe a vertical circle of 1m. its instantaneous speed is 1m/s when the string makes an angle of 30 degree with the vertical. find the tension in the...
mass = 0.1 kg drawing the fbd at that instant,we get the following equation, T-mgcos30=mv 2 /r because this only provides the centripetal force. and here v is the instantaneous speed of the ...
Piyush Behera 9 days ago
I read in my ncert book that "however, take care not to let the Gaussian surface pass through any discrete charge. This is because electric field due to a system of discrete charges is not...
If the Gaussioan surface would pass through the dicrete charge then there would be a contradiction with what part of chrge would be considered inside the surface that is to say that Electric...
Vikas TU one month ago
Can carbon produce photoelectric effect? when use the laser wave 470nm. voltage between anode and cathnode is limited in the range -1 V to 1 V. Thanks~ Could you send the answer to Email:...
Only metals whih has valency of +1 and +2 are suitable for Photoelectric process. As they are in a rapid condition to take electrons to complete its octet. Thus are more eager to show...
Vikas TU 2 months ago
Pseudo-force is a term used when defining behavior of non-inertial frames of reference, where applying this concept may simplify calculations by reducing them to Newtonian physics. More...
dolly bhatia one month ago
@ piyush what u need to understand is that pseudo force is not actually a force , it will be incorrect if u will say pseudo force a force . it is just a mathematical concept to deal with...
Umakant biswal one month ago
It is an imaginary force taken for the purpose to solve the questions...acting opposite to the direction of acceleration in the inertial frame of refrence
Utkarsh Somvanshi one month ago
View all Questions »

  • Complete Physics Course - Class 12
  • OFFERED PRICE: R 2,600
  • View Details
Get extra R 650 off

  • Complete Physics Course - Class 11
  • OFFERED PRICE: R 2,800
  • View Details

Get extra R 700 off

More Questions On Mechanics

Ask Experts

Have any Question? Ask Experts

Post Question

Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details