linear dependate vector

W 38 minutes ago PHY 101 Assignment 1. Given the vectors: A= 31 + 5) -k , B=41+2J+2k , C= 61 + 31+ 3k Evaluate: (1) 24 + B - 30 (i1) (AxB).C (jii) Ax (BxC) (iv) verify if the vectors A, B and Care coplanar. 2. A 40g stone is thrown with a velocity 10ms- into a heap of sand. If the stone penetrat es the sand to a depth 4.0cm, calculate the magnitude of the force that stopped the ston e. 3. Calculate the angular velocity of a certain biochemistry student who out of excitement spin round an obstacle with an angular acceleration given by the equation below aft) = 8t' - 4. A 10kg bullet moving at 70m/s penetrate a block of wood 5cm before stopping. Deter mine the kinetic energy of the bullet and average stopping point