A car weighing 100kg is on a slope that makes and angle 30^(@) with the horizontal. The componen...

A man pushes a 80 N crate a distance of 5.0 m upward along a frictionless slope that makes an angle of 30^@ with the horizontal. The force he exerts is parallel to the slope. If the speed of the crate increases at a rate of 1.5 then the work done by the man is :

A body of mass 10kg is placed on a smooth inclined plane making an angle of 30^(@) with the horizontal, the component of the force of gravity trying to move the body down the inclined plane is [g=9.8m//s^(2)]

A person pushes a block of mass 4 kg up a frictionless inclined plane 10 m long and that makes an angle of 30^@ with the horizontal . Then the work done is

A wooden block of mass 100 kg rests on a flat wooden floor, the coefficient of friction between the two being 0.4 . The block by a rope making an angle of 30^(@) with the horizontal. What is the minimum tension along the rope that just makes the rope sliding?

A block rests on a rough inclined plane making an angle of 30^@ with the horizontal. The coefficient of static friction between the block and the plane is 0.8. If the frictional force on the block is 10N, the mass of the block (in kg) is

A block of mass 2kg rests on a rough inclined plane making an angle of 30^@ with the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is

A boy wants to hold a 50 kg box on a snow covered hill. The hill makes an angle of 30^(@) with the horizontal. What force the boy must exert parallel to the slope ?

If a magnet is suspended at an angle 30^(@) to the magnetic meridian and in this plane the dip needle makes an angle of 60^(@) with the horizontal. The true value of dip is:

A ladder resting along the wall at an angle 45^(@) slides such that it makes an angle of 30^(@) with the horizontal,as shown.The value of (x)/(y) is :

A body is projected at an angle 60^@ with horizontal with kinetic energy K. When the velocity makes an angle 30^@ with the horizontal, the kinetic energy of the body will be