Question

1.
All surfaces are frictionless and the pulleys and strings are light. Then the correct options are :
10kg
w
30
T
20 kg
A) Acceleration of block of mass 10 kg is m/s? B) Acceleration of block of mass 20 kg is m/s?
C) T, > T2
D) T2>T]​

Answer 1

Answer:For mass m  

1

​  

 

F=ma

a  

m  

1

​  

 

​  

=  

m

F

​  

=  

20

180

​  

=9m/s  

2

 

a  

m  

1

​  

 

​  

=9m/s  

2

 

For mass m  

2

​  

 

There would be no force on m  

2

​  

, there is  only tension on m  

1

​  

 that is F because the pulley is ideal mass less and frictionless if there is friction between m  

1

​  

 and m  

2

​  

 then m  

2

​  

 would have acceleration but there is no friction so, acceleration of m  

2

​  

 will be zero.

a  

m  

2

​  

 

​  

=0

Explanation: