JEE Mains 27-July-2022 Shift 1 Solved Paper

A bullet is shot vertically downwards with an initial velocity of 100m∕s from a certain height. Within 10s, the bullet reaches the ground and instantaneously comes to rest due to the perfectly inelastic collision. The velocity-time curve for total time t=20s will be:
(Take .g=10m∕s2).