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

The length is
`D = 5 \ cm`

Step-by-step 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`