Physics, 11.07.2019 07:30 bckyanne3

In a carnival booth, you can win a stuffed giraffe if you toss a quarter into a small dish. the dish is on a shelf above the point where the quarter leaves your hand and is a horizontal distance of 2.1 m from this point. if you toss the coin with a velocity of 6.4 m> s at an angle of 60° above

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Answer from: Wolfy07

The height of the coin above the point where the coin leaves your hand is 1.53 meters

"We are to find the height of the coin above the point where the coin leaves your hand is 1.53 meters"

Velocity, V = 6.4m/s

Angle, θ = 60°

Resolve the coin speed into vertical and horizontal components :

Horizontal component (Vx) :

Vx = Vcosθ

Vx = 6.4cos60° = 6.4 × 0.5 = 3.20 m/s

Vertical component (Vy) :

Vy = Vsinθ

Vy = 6.4 × sin60° = 6.4 × 0.8660 = 5.54 m/s

Time taken by the coin to reach the plate :

Recall :

Speed = distance / time

Time taken = distance / speed

Horizontal Distance = 2.1 m

Speed = horizontal velocity = 3.2 m/s

Hence,

Time taken = 2.1 / 3.2 = 0.656 seconds

From the laws of motion :

S = ut + 0.5gt²

S = height or vertical distance

u = vertical speed

g = acceleration due to gravity = - 9.8m/s (downward motion)

S = (5.54 × 0.656) + (0.5 × - 9.8 × 0.656²)

S = 3.635625 - 2.11025390625

S = 1.52537109375

S = 1.53 meters

Hence, the height of the coin above the point where the coin leaves your hand is 1.53 meters.

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Answer from: taylorrsmithh

components of the speed of the coin is given as

v_x = v cos60

v_x = 6.4 cos60 = 3.2 m/s

v_y = vsin60

v_y = 6.4 sin60 = 5.54 m/s

now the time taken by the coin to reach the plate is given by

$t = \frac{\delta x}{v_x}$

$t = \frac{2.1}{3.2}$

t = 0.656 s

now in order to find the height

$h = vy * t + \frac{1}{2} at^2$

$h = 5.54 * 0.656 - \frac{1}{2}*9.8*(0.656)^2$

h = 1.52 m

so it is placed at 1.52 m height

Answer from: Quest

answer: the correct answer is air pressure at the top of mount everest is higher than at the bottom of the grand canyon.

hope this : )

explanation:

Answer from: Quest

Answer:

the word that best describes martin luther king jr.'s tone in the video is dignified

explanation:

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

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In a carnival booth, you can win a stuffed giraffe if you toss a quarter into a small dish. the dish...