Shown in the figure below, Mass A is 4.0 kg and it rests on a smooth surface. It is attached to a 1.0 kg mass B by a weightless string which passes over a pulley. The 1.0 kg mass is released from rest, and it accelerates downwards. Ignore all friction. A B h How long does it take the 1.0 kg mass to hit the floor, having fallen a distance of 0.5 m? Select one alternative: 0 0.16 8 0 0.65 s 0 0.32 5 0 0.718 D 0.30 s5 What is the torque on the 1.5 m long rigid rod below when a force of 20.0 N acts at an angle of 45.0' to the rod shown below: L = 1.5 m 45.0" F = 20.0 N Fixed fulcrum Select one alternative: O 24.0 N m O 21.2 N m O 18.2 N m O 20.7 N m 0 144 N m Maximum marks: 1 ResetWhich statement is not in agreement with Newton's laws of motion? Select one alternative: O All objects experience the same gravitational acceleration on earth. O If I throw a ball upwards from the ground and the ball falls back down, the velocity of the ball is zero when the ball reaches the maximum height. O The resultant force on an object is the product of its mass and acceleration. O To maintain constant speed is the same as maintaining constant acceleration. If I push a friend in space, the force I exert on my friend is equal in magnitude to the force my friend exerts on me. Resol Maximum marks: 1