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1.
A block of mass 
is in contact with the cart 
as shown in the figure
The coefficient of static friction between the block and the cart is
. The acceleration 
of the cart that will prevent the block from falling satisfies
is in contact with the cart as shown in the figureThe coefficient of static friction between the block and the cart is
. The acceleration of the cart that will prevent the block from falling satisfies
2.
A block of mass 
kg resting on a horizontal surface. A force 
is applied on the block as shown in figure. If coefficient of friction between the block be 
, what can be the maximum value of force so that block does not start moving? (Take 
)
kg resting on a horizontal surface. A force is applied on the block as shown in figure. If coefficient of friction between the block be , what can be the maximum value of force so that block does not start moving? (Take )
3.
A pendulum bob of mass 
is suspended from the ceiling of an elevator. The tension in the string if the elevator goes up with uniform velocity is approximately
is suspended from the ceiling of an elevator. The tension in the string if the elevator goes up with uniform velocity is approximately