Question

What is the length of the shadow cast on the vertical screen by your 10.0 cm hand if it is held at an angle of θ=30.0∘ above horizontal? Express your answer in centimeters to three significant figures. View Available Hint(s)

Answer 1

Answer:

The  length is  $D = 5 \ cm$

Explanation:

From the question we are told  that

     The  length of the  hand is  $l = 10.0 \ cm$

      The  angle at the hand is  held is  $\theta = 30 ^o$

Generally resolving the length the length of the hand to it vertical component we obtain that the length of the shadow on the vertical wall is mathematically evaluated as

             $D = l * sin(\theta )$

substituting values

             $D = 10 * sin (30)$

             $D = 5 \ cm$