When person cycling on rough horizontal surface then which of the following are correct

A block slides down a smooth inclined plane and then moves on to a rough horizontal surface. Which of the following is/are correct? (Neglect impulsive effect at the bottom of incline)

A block slides down a smooth inclined plane and then moves on to a rough horizontal surface. Which of the following is/are correct? (Neglect impulsive effect at the bottom of incline)

A body is moving on a rough horizontal surface with uniform velocity. Which of the following statement is in accordance with the Newtons first law of motion?

A rod of mass m is released on smooth horizontal surface making angle theta with horizontal. Then which of the following statement is correct ?

A rod of mass m is released on smooth horizontal surface making angle theta with horizontal. Then which of the following statement is correct ?

When a person walks on a rough surface .

A block resting on a rough horizontal surface. A sharp horizontal impulse is applied on the block at t=0 . If at an instant t , its velocity be v and displacement up to this instant be s , then which of the following graphs is // are correct?