Q1. A chair of weight 130 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 45.0 fixed at an angle of 39.0below the horizontal and the chair slides along the floor.

Using Newton's laws, compute the magnitude of the normal force that the floor exerts on chair.

Q2. A performer in a circus is fired from cannon as a "human cannonball" and leaves the cannon with a speed of 18 m/s. The performer's mass is 80 kg. The cannon barrel is 9.20 m long. Find out the average net force exerted on the performer while he is being accelerated inside cannon?