Question

The force-time (F-t) graph for linear motion of a
body initially at rest is shown in figure. The
segments shown are semi-circular, the linear
momentum gained in 4 s is
F
2
o
2
6 8​

Answer 1

Answer:

Area of F-t graph is the change in momentum.

Let's divide the graph into 3 parts viz.,

1) 0 < t < 2

2) 2 < t < 6

3) 6 < t < 8

In part 1, 2, and 3, the areas are −Π,2Π,−Π

So, Totalmomentumchange=−Π+2Π+−Π=0