Solve the following example :
Calculate the pressure exerted by the wooden block when it is kept in the vertical position.
given : The length of the wooden block is 80 cm, the breadth id 50 cm, the thickness is 20 cm and the weight is 500 N.

Solve the following example : Calculate the pressure when the wooden block is kept in the horizontal position with its surface 80 cm xx 50 cm touching the floor. given : The length of the wooden block is 80 cm, the breadth id 50 cm, the thickness is 20 cm and the weight is 500 N.

Solve the following problrms using two variables: In the figure , the sided of a rectangle are given. The lengths are in cm . Find the length and breadth of the rectangle.

Solve the following example : A force of 1000N is applied over an area's 50cm xx 20cm Find the corresponding pressure.

Solve the following example : Measure the length, breadth, height and mass of a rectangular tiffin box. Find the weight of the box and calculate the pressure in two different positions.

Solve the following examples/ numerical problems: An object is placed at 10 cm from a convex lens of focal length 12 cm . Find the nature and position of the image .

Solve the following examples/ numerical problems: An object of height 4cm is placed in front of a concave lens of focal length 40 cm. If the object distance is 60 cm, Find the position and height of the image .

Solve the following examples: A pendulum having a length of 30 cm takes 30 seconds to complete 20 oscillations. What is the time period of that pendulum?

Solve the following problems : The area of the tip of a screw is 0.5 mm^2 and its weight is 0.5 N . Calculate the pressure ( in pa ) exerted by the screw on a wooden plank .

Solve the following problems : The area of the bottom of a tiffin box is 0.25 m^2 and weight is 50N , Calculate the pressure exerted by the box on the shelf .