Momentum and CollisionHard

Question

The figure shows the position - time (x - t) graph of one-dimensional motion of a body of mass 0.4 kg. The magnitude of each impulse is
          

Options

A.0.4 Ns
B.0.8 Ns
C.1.6 Ns
D.0.2 Ns

Solution

From the graph, it is a straight line so, uniform motion. Because of impulse direction of velocity changes as can be seen from the slope of the graph.
Initial velocity = = 1 m/s
Final velocity = - = - 1 m/s
= 0.4 N - S
= - 0.4 N - S
= - 0.4 - 0.4 = - 0.8N - s (J = impulse)
= 0.8 N - s

Create a free account to view solution

View Solution Free
Topic: Momentum and Collision·Practice all Momentum and Collision questions

More Momentum and Collision Questions

A tiny spherical oil drop carrying a net charge q is balanced in still air with a vertical uniform electric field of str...An increases in pressure required to decreases the 200 liters volume of a liquid by 0.004% in container is : (Bulk modul...In the given figure an impulse J is given to the block of mass m in the downward direction. As a result of the impulse :...A small sphere of mass 1 kg is moving with a velocity (6î + ĵ) m/s. It hits a fixed smooth wall and rebounds w...If the density of the material increase, the value of Young′s modulus : -...