A concrete slab of mass 400kg accelerates down a concrete slope including at 35⁰ the kinetic between the slab and slope is 0.60 Determine the acceleration of the block,

Abullet of mass 0.01kg is fired into sandbag of mass 0.49kg hanging from a tree the sandbag with the bullet embedded into it swings away at 10m/s find
a) the momentum after the collision
b) the momentum before the collision
c)the velocity of the bullet

a) The momentum after the collision is 0.1 kg m/s.

b) The momentum before the collision is 0.49 kg m/s.
c) The velocity of the bullet is 10 m/s.