All Solved Examples of Chapter 3 Dynamics Class 11 AQ Academy AQ Academy

 All Solved Examples of Chapter 3 Dynamics Class 11 AQ Academy AQ Academy 

        Example 3.1

        A 50 N force applied on a box of mass 8.16 kg to move on the right across a horizontal surface.            What is the acceleration is of produced in the box. 

    Example 3.2

    A hockey puck with a mass of 0.2 kg is sliding on the ice at a velocity

    of 10 m/s. It collides with a wall and bounces back with a velocity of 8 rn/s. The collision lasts for         0.1 seconds. Calculate the impulse experienced by the hockey puck and the change in its                     momentum.     

    Example 3.3

    Two objects, A and Ii, are initially at rest on a frictionless surface. Object A has a mass of 0.5 kg. And     object B has a mass of 0.8 kg. Object A collides with object B. After the collision, object A moves to     the right at a velocity of 4 m/s, and object B moves to the left at a velocity of 2 m/s.

    a) Calculate the total momentum before the collision.

    b) Calculate the total momentum after the collision.

    c) Calculate the kinetic energy before and after the collision.