Acceleration of the block of mass 12kg when it is pushed with a force of 500N as shown is?

The acceleration of the 2 kg block if the free end of string is pulled with a force of 20 N as shown is

A block of mass 2kg is placed on a trolley of mass 20 kg free to move on a frictionless floor. What are the frictional force, accelerations of the block and trolley if the block is pulled by a force of 3 N ? The coefficient of friction between block and trolley is 0.25. What will be the values of all three if the block is pulled by 8 N force ? At what value of the applied force will the bodies just tend to separate ? [Hint : So long as the force applied does not produce the limiting frictional force the two will move with common acceleration. When the force applied exceeds that limiting value the block will move on the trolley with a different acceleration]

Three blocks are placed as shown. The coefficient of friction between any two surfaces is also as given in the diagram. Find the acceleration of the 1kg block at the instant when a force of 50N is applied on 5kg block.

A block of mass 50 kg is kept on another block of mass 1 kg as shown in figure. A horizontal force of 10 N is applied on the 50kg block. (All surface are smooth). Find (g = 10 m//s^(2)) Acceleration of block A and B.

A block of mass sqrt(3) kg rests on a horizontal frictionless surface. What will be the acceleration of the block if it is subjected to two forces as shown in the figure.

The acceleration of the 10 kg mass block shown in the figure is : -

A block of mass 4 kg is pressed againest the wall by a force of 80N as shown in figure Determine the value of the friction force and block's acceleration (Take mu_(s) = 0.2 , mu_(s) = 0.15)

A block of mass 20kg is pushed with a horizontal force of 90N . It the coefficient of static and kinetic friction are 0.4 and 0.3, the frictional force acting on the block is (g =10ms^(-2)) .