Newtons Laws Of Motion

A force is applied on a block of mass along the fixed smooth incline as shown in figure. Here gravitational acceleration . The acceleration of the block is

A 10gm bullet moving directly upward at 1000 m/s strikes and passes through the center of mass of a 10 kg block initially at rest .The bullet emerges from the block moving directly upward at 400 m/s. What will be velocity of the block just after the bullet comes out of it ?

There are two identical springs each of spring constant k. Here springs, pulley and rods are massless and block has mass m. What is the extension of each spring at equilibrium ?