A block of mass m is placed on a smooth inclined plane of inclination `theta` with the horizontal. The force exerted by the plane on the block has a magnitude

Statement I: A block of mass m is placed on a smooth inclined plane of inclinaton theta with the horizontal. The force exerted by the plane on the block has a magnitude mg cos theta . Statement II: Normal reaction always acts perpendicular to the contact surface.

Statement I: A block of mass m is placed on a smooth inclined plane of inclinaton theta with the horizontal. The force exerted by the plane on the block has a magnitude mg cos theta . Statement II: Normal reaction always acts perpendicular to the contact surface.

A block of mass m is placed on a rough inclined plane of inclination theta kept on the floor of the lift. The coefficient of friction between the block and the inclined plane is mu . With what acceleration will the block slide down the inclined plane when the lift falls freely ?

A horizontal force F is applied to a block of mass m on a smooth fixed inclined plane of inclination theta to the horizontal as shown in the figure. Resultant force on the block up the plane is:

A block of mass m is placed on a rough plane inclined at an angle theta with the horizontal. The coefficient of friction between the block and inclined plane is mu . If theta lt tan^(-1) (mu) , then net contact force exerted by the plane on the block is :

A block of mass m is placed on a rough plane inclined at an angle theta with the horizontal. The coefficient of friction between the block and inclined plane is mu . If theta lt tan^(-1) (mu) , then net contact force exerted by the plane on the block is :

A block is released on an smooth inclined plane of inclination theta . After how much time it reaches to the bottom of the plane?

A block of weight 1 N rests on a inclined plane of inclination theta with the horizontal. The coefficient of friction between the block and the inclined plane is mu . The minimum force that has to be applied parallel to the inclined plane to make the body just move up the plane is