3 years ago

Need the answer for question 5 :)

Physics

1 answer:

kykrilka [37]3 years ago

3 0

Answer:

1 B. Convert v from km/min to m/s ( show work and units

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an object traveling 200 feet per second slows to 50 feet per second in 5 seconds. Calculate the acceleration of the object

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Answer:

The acceleration of the object is $-30\ m/s^2$

Explanation:

Given:

Initial velocity of object $v_i$ = 200 feet/second

Final velocity of object $v_f$ = 50 feet/second

Time of travel = 5 seconds

To calculate acceleration of the object we will find the rate of change of velocity with respect to time.

So, acceleration $a$ is given by:

$a=\frac{v_f-v_i}{t}$

where $v_f$ represents final velocity, $v_i$ represents initial velocity and $t$ is time of travel.

Plugging in values to evaluate acceleration.

$a=\frac{50-200}{5}$

$a=\frac{-150}{5}$

$a=-30\ m/s^2$

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