[单选题]
An egg hits a wall covered with a soft material and
bvg:q* rn9q9v /py2 amsticks to
a3vqz1e8 n-zlze.a a4it. The graph shows the variation of horizontal force
41veaa8az nlq3z-.ez $F$ acting on the egg with time $t$ during the collision.
The soft material on the wall is removed and an identical egg with the same initial speed collides with and sticks to the wall. Which graph shows the variation of horizontal force $F$ acting on the second egg with time $t$ during the collision? The graph for the first egg is shown as a dotted line.
