Use the Position Equation $s = - 20 t ^ { 2 } + v _ { 0 } t + s _ { 0 }$

question 122

Multiple Choice

Use the position equation $s = - 20 t ^ { 2 } + v _ { 0 } t + s _ { 0 }$ , where $S$ represents the height of an object (in feet) , $\mathcal { V } _ { 0 }$ represents the initial velocity of the object (in feet per second) , $s _ { 0 }$ represents the Initial height of the object (in feet) , and $t$ represents the time (in seconds) .
A projectile is fired straight upward from ground level $\left( s _ { 0 } = 0 \right)$ with an initial velocity of $220$ feet Per second. At what instant will it be back at ground level?

• A) \(t = 13 \mathrm { Sec }\)
• B) \(t = 12 \mathrm { Sec }\)
• C) \(t = 20 \mathrm { Sec }\)
• D) \(t = 11 \mathrm { Sec }\)
• E) \(t = 10 \mathrm { Sec }\)

Explain the effects of motion parallax on the perception of movement.

Understand the role of context in visual perception.

Distinguish between different perceptual constancies beyond size and shape.

Understand the concept and examples of visual illusions.

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