Question 11 (1 point) John carries a 14Kg box up a flight of stairs with a height of 7 meters.How much work does he accomplish? B 960.4 J b 2J 340.5 J d 98J

## Step 1<br />The problem involves calculating the work done by John in carrying a box up a flight of stairs. In physics, work is defined as the product of the force applied and the distance over which the force is applied. In this case, the force is the weight of the box and the distance is the height of the stairs.<br /><br />## Step 2<br />The weight of the box is the product of its mass and the acceleration due to gravity. The mass of the box is given as 14 kg and the acceleration due to gravity is approximately 9.8 m/s².<br /><br />### **Weight = mass * gravity = 14 kg * 9.8 m/s² = 137.2 N**<br /><br />## Step 3<br />The work done is then the product of the weight of the box and the height of the stairs.<br /><br />### **Work = Weight * height = 137.2 N * 7 m = 960.4 J**