Does a man standing at rest on a moving truck possess KE?

Does a man sitting in a moving train posses KE?

A truck starts from origin, accelerating with a m s^-2 in positive x - axis direction. After 2 s , a man standing at the starting point of the truck projected a ball at an angle 30^@ with velocity v m s^-1 . Find the relation between a and v such that the ball hits the truck. (Assume that truck is moving on horizontal plane and the man projected the ball from the same horizontal level of truck).

A person standing on a moving truck, throws a stone vertically up relative to himself. To a person, standing on the ground, the stone appears to : (immediately after being thrown).

A boy standing on a moving truck throws a projectile such that he is able to catch it back after the truck has moved 100 m. If the truck is moving horizontally along a straight line with a constant speed 30 m/s, at what speed (relative to the truck) must the projectile is thrown. (Assume, g = 10 m//s^2 )

The figure shows a man of mass m standing at the end A of a trolley of maas M placed at rest on a smooth horizontal surface. The man starts moving towards the end B with a velocity u_(rel) with respect to the trolley. The length of the trolley is L. When the man starts moving, then the velocity of the trolley v_(2) with respect to ground will be:

The figure shows a man of mass m standing at the end A of a trolley of maas M placed at rest on a smooth horizontal surface. The man starts moving towards the end B with a velocity u_(rel) with respect to the trolley. The length of the trolley is L. When the man reaches the end B, the distance moves . by the trolley with respect to ground is:

The figure shows a man of mass m standing at the end A of a trolley of maas M placed at rest on a smooth horizontal surface. The man starts moving towards the end B with a velocity u_(rel) with respect to the trolley. The length of the trolley is L. As the man walks on the trolley, the centre of mass of the system (man+ trolley) :

A truck of mass 10 metric ton runs at 3ms^(-1) along a level track and collides with a loaded truck of mass 20 metric ton, standing at rest. If the trucks couple together , the common speed after the collision is

A truck of mass 10 metric ton runs at 3ms^(-1) along a level track and collides with a loaded truck of mass 20 metric ton, standing at rest. If the trucks couple together , the common speed after the collision is