Question: A vertical pole of length L is placed on top of a hill of height h. From the plain below the angles of elevation of

A vertical pole of length L is placed on top of a hill of height h. From the plain below the angles of elevation of the top and bottom of the pole are α and β. See Fig. 20.12. Show that

h = Lcosasin 3 sin(a - 3)

Fig. 20.12.

h = Lcosasin 3 sin(a - 3)

Step by Step Solution

★★★★★

3.40 Rating (172 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

We are given that and we need to prove that From the top figure we can see that Tan L h ba... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Basic Technical Mathematics Questions!

A chain of length l is placed on a smooth spherical surface of radius R with one of its ends fixed at the top of the sphere. What will be the acceleration w of each element of the chain when its...

A vertical pole of aluminum is fixed at the base and pulled at the top by a cable having a tensile force T (see figure). The cable is attached at the outer edge of a stiffened cover plate on top of...

A vertical pole of length 'a' stands at the centre of a horizontal regular hexagonal ground of side 'a'. A rope that is fixed taut in between a vertex on the ground and the tip of the pole has a...

Only 1-4 AP Physics 1 U5 WS2 - UCM page 1 Unit 5 11/9/2016 1. A block of ice with mass m is tied to a stake on a frozen level pond with a rope of length /. With the rope held taut, the block is given...

3. 2.5 U(J) MAMMA Time (s) A 2.00 kg block is attached to a horizontal ideal spring with a spring constant k = 100. The block-spring system is set on a horizontal surface with negligible friction. A...

Solve each of the following problems In each case be sure to make a diagram of the situation with all the given information labeled 1 Isosceles Triangle The two equal sides of an isosceles triangle...

Tower of Hanoi (Modified from Wiki) The Tower of Hanoi is a mathematical game or puzle. It consists of three poles and a nmberof disks of different sizes, which can slide onto any pole. The puzle...

Solve each of the following problems. In each case, be sure to make a diagram of the situation with all the given information labeled. 1 isosceles Triangle The two equal sides of an isosceles...

4. The following are the ages of the first ten students who enrolled in a certain college. Find the mean. 23. 21, 18, 17, 19, 21, 20, 18, 19, 24. . 19 . 22 . 20 D. 21 5. Find the median of the...

Find the future value of an annuity due of $750 semiannually for four years at 8% annual interest compounded semiannually. What is the total investment? What is the interest?

2 If a business reduces its fixed costs whilst maintaining the same contribution margin, will this increase or decrease its break-even point?

=+2.28 Based on a survey of 4113 U.S. adults, researchers at Stanford University concluded that Internet use leads to increased social isolation. The survey was conducted by an Internet-based polling...

A self-catalytic chemical reaction results in the formation of a compound that causes the formation ratio to increase. If the reaction rate V is modeled by V(x) = kx(a - x), 0 x 1 where k is a...

Calculus: Simpson's Rule The figure shows the graph of y = ax 2 + bx + c. Suppose that the points (-h, y 0 ), (0, y 1 ), and (h, y 2 ) are on the graph. It can be shown that the area enclosed by the...

Use the result obtained in Problem 20 to find the area enclosed by f(x) = -5x 2 + 8, the x-axis, and the lines x= -1 and x = 1.

Splash World is considering purchasing a water park in Atlanta, Georgia, for $1,870,000. The new facility will generate annual net cash inflows of $472,000 for eight years. Engineers estimate that...

Monica bought a $1,200 4K Ultra HD TV 20% down and payments of $192 per month (except for a smaller final payment) including interest at 18% compounded monthly. Construct the full amortization...

Instructions Charts of Accounts labels and amount descriptions T Accounts journal retained earnings statement and stockholders equity Morrow Enterprises Inc. manulactures bathroom fotures. The...