As shown in the figures, two poles of height 8m and 4m are perpendicular to the ground. If the length of shadow smaller pole
due to sunlight is 6 m then long will be the shadow of the bigger
pole of the same time?

Two poles of heights 18 metre and 7 metere are erected on a ground. The length of the wire fastened at their tops in 22 meters. Find the angle made by the wire with the horizontal.

As shown in the figure, four napkins all of the same size were made from a square piece of length I m. what length of lace will be required to trim all four sides of all the napkins?

If a pole 12 m high casts a shadow 4sqrt(3) m long on the ground then the sun's elevation is

A vertical pole of a length 6 m casts a shadow of 4 m long on the ground. At the same time a tower casts a shadow 28m long. Find the height of the tower.

A man of height 180 cm is moving away from a lamp post, at the rate of 1.2m/sec. If the height of the lamp post is 4.5 m., find the rates of which his shadow is lengthening

The horizontal distance between two poles is 15m. The angle of depression of the top of the first pole as seen from the top of the second pole is 30^o . If the height of the second pole is 24 m, find the height of the first pole. (sqrt(3)=1. 732)

A stone is dropped from the top of a tower of height 45 m. One second later another stone is thrown down from the town of the same tower. Both stones reach the ground at the same time. If (g= 10 m/s^2), magnitude of the initial velocity of the sound stone is

A battery of e.m.f. 2 V and internal resistance 2Omega is connected to an external resistance 8Omega . If the length of the conductor is 4 m, then potential gradient between the two ends of the wire is

A man of height 180 cm is moving away from a lamp post, at the rate of 1.2m/sec. If the height of the lamp post is 4.5 m., find the rate of which the tip of his shadow is moving.

A stone is thrown vertically upwards from the ground with a velocity 15 m/s. At the same instant a ball is dropped from a point directly above the stone from a height of 30 m. At what height from the ground will the stone and the ball meet and after how much time? (Use g= 10 m//s^2 for ease of calculation).