Calculating the Force Exerted by an Object on a Table

The video tutorial explains how to calculate the force exerted by a box on a table using the pressure formula. It begins by introducing the problem and the formula for pressure, which is force divided by area. The tutorial then guides viewers through calculating the area of the box's face in contact with the table, followed by understanding the pressure and its units. Finally, it demonstrates how to rearrange the formula to find the force and reviews the solution, highlighting the marks allocation for each step.

What are the dimensions of the rectangle that is in contact with the table?

• 1.25 meters by 125 meters

• 2 meters by 125 meters

• 2 meters by 1.25 meters

• 2.5 meters by 2 meters

How do you calculate the area of the rectangle in contact with the table?

• Subtract the width from the length

• Divide the length by the width

• Multiply the length by the width

• Add the length and width

What is the formula for pressure?

• Pressure = Area / Force

• Pressure = Force + Area

• Pressure = Force / Area

• Pressure = Force x Area

What is the calculated force exerted by the box on the table?

• 125 newtons

• 105 newtons

• 2.5 newtons

• 42 newtons

How many marks were available for correctly calculating the force?

• Four marks

• Three marks

• Two marks

• One mark