A boy 1.4 m tall casts a shadow 1.2 m long at the time when building casts a shadow 5.4 m long. What is the height of the building.
At a particular time the shadow of a men of 170 cm height is 204 cm on the ground and at the same time and on the same ground the shadow of a pole is 600 cm. Find the height of the pole?
A man 180 cm tall stands 4.5 meter in front of a large vertical plane mirror then what is the angle subtended at the eye by his image in the plane mirror?
A body is projected at velocity of 40 m/s, after 2 sec it crosses a vertical pole of height 20.4 m. What is angle of projection and horizontal range?