Dynamics-1

1. A force of 5 N is applied to a body weighing 10 N. Its acceleration in ms-2 is:

 
 
 
 

2. The net force on the body falling in air with uniform velocity is equal to_______.

 

 
 
 
 

3. Change in momentum of a body is equal to:

 
 
 
 

4. A bucket having some water is revolved in a vertical circle. Water does not spill out, even if the bucket is upside down, due to the:

 
 
 
 

5. SI unit of linear momentum is:

 
 
 
 

6. The force which moves the car is:

 
 
 
 

7. An object of mass 1 kg placed at the earth’s surface experiences a force of:

 
 
 
 

8. N kg-1 is equivalent to:

 
 
 
 

9. Thrust force is a consequence of which law of motion:

 
 
 
 

10. When a hanging carpet is beaten by a stick. Dust flies off the carpet. It is mainly due to:

 
 
 
 

11. The inertia of a body is related to which of the following quantities

 
 
 
 

12. A force acts on a body for 2 seconds and it produces 50 kg ms-1 change in its momentum. The force acting on the body is:

 
 
 
 

13. At the fairground, the force that balances your weight is:

 
 
 
 

14. A book of mass 5 kg is placed on the table, and the magnitude of the net force acting on the book is:

 
 
 
 

15. The rate of change of momentum of free falling body is equal to its:

 
 
 
 

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