Moving Objects and Finding Angles, Quiz

From the top of a

60

m tower, the angle of depression of a car changes from

30^\circ

to

60^\circ

as it drives straight towards the tower. How far did it travel?

A

60\sqrt{3}

m

B

40\sqrt{3}

m

C

20\sqrt{3}

m

D

40

m

In that situation the car took

6

minutes for that stretch at a steady speed. How much longer to reach the tower?

A

3

minutes

B

6

minutes

C

2

minutes

D

12

minutes

A pole

10\sqrt{3}

m high casts a shadow

10

m long. What is the Sun's elevation?

A

45^\circ

B

90^\circ

C

60^\circ

D

30^\circ

A

10

m ladder reaches

5

m up a wall. What angle does it make with the ground?

A

60^\circ

B

50^\circ

C

30^\circ

D

45^\circ

A tower

8

m high is seen from a point

8\sqrt{3}

m from its foot. What is the angle of elevation?

A

15^\circ

B

45^\circ

C

60^\circ

D

30^\circ

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