2 years ago

is the rate at which ____________________ changes. (Velocity or Acceleration, velocity or acceleration)

Physics

1 answer:

Troyanec [42]2 years ago

8 0

Acceleration is the rate at which velocity changes.

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In Example 2.12, two circus performers rehearse a trick in which a ball and a dart collide. Horatio stands on a platform 6.4 m a

pickupchik [31]

Answer:

time of collision is

t = 0.395 s

$h = 5.63 m$

so they will collide at height of 5.63 m from ground

Explanation:

initial speed of the ball when it is dropped down is

$v_1 = 0$

similarly initial speed of the object which is projected by spring is given as

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now relative velocity of object with respect to ball

$v_r = 16.2 m/s$

now since we know that both are moving under gravity so their relative acceleration is ZERO and the relative distance between them is 6.4 m

$d = v_r t$

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$t = 0.395 m$

Now the height attained by the object in the same time is given as

$h = v_2 t - \frac{1}{2}gt^2$

$h = 16.2(0.395) - \frac{1}{2}(9.81).395^2$

$h = 5.63 m$

so they will collide at height of 5.63 m from ground

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3 years ago

In which situation is the maximum possible work done? A. when the angle between the force and displacement is 0° B. when the ang

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Explanation:

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3 years ago

Read 2 more answers