Question

10) The mass of the Earth is 5.98 x 10"ks the mass of the Moon is 7.35 x 10 kg and the distance from the Earth to the Moon is 3.84 x 10' m Determine, in the force of attraction between the Earth and the Moon a) 7.63 x 10 b) 3.74 x 10 c) 199x10 d) 8.49 x 10" Answer 11) A wheel has a moment of inertia of 1.0 x 10kgm. Determine the set torque. in Nm, that must be applied to the wheel for its angular acceleration to be 100 rads" b) 3 c) 6 d) 10 Answer 12) An object, initially at rest, undergoes an angular acceleratie of 0.5 rady. Determine, in rad's, the angular velocity of the object after 100 a) 500 b) 50 d) not enough information provided to determine the angular velocity of the object Answer 13) Determine the buoyant force, in N, of water on a completely submerged object having a volume of 340 m a) 4.53 x 10 b) 3.33 x 10 c) 39 x 10 d) 145 x 10 Answer 14) A 10,000-kg railroad car traveling at a speed of 2.0m's strikes an identical car at rest. The cars lock together as a result of the collision Determine the velocity, in ms of the locked cars after the collision a) 1 b) 22 c) 17 d) 9

Answer 1