Question

Figure shows the position ( x) ® time ( t) graph of one dimensional motion of a body of mass 0.4 kg. What is the magnitude of impulse of force ?​

Answer 1

Answer:

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 =

2

2

=1m/s

Final velocity =−

2

2

=−1m/s

P

i

=0.4N−s

P

f

=−0.4N−s

J

=

P

f

−

P

i

=−0.4−0.4=−0.8Ns(

J

=impulse)

∣

J

∣=0.8Ns