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4 years ago

14

Newton's First Law of Motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon

by an external force change the motion. This is sometimes called the law of A) acceleration B) force C) inertia D) uniformity

2 answers:

iogann1982 [59]4 years ago

8 0

Answer:It would be C) Inertia

Explanation:

Leno4ka [110]4 years ago

4 0

Law of inertia would be your answer.

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Tina's calculations of the tarantula found that the spider was able to cover 20 centimeters in five seconds what was the average

Sergeu [11.5K]

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4 years ago

Jaime lifts a package weighing 75N. if she lifts it 1.2 m, what work has she done

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Answer:
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3 years ago

A car moves with constant acceieration of -0.s m/s? on a straight portion of the road. Att- 0s the car has a velocity of 69 mph,

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Answer:

b) d = 0.71 Km

Explanation:

Car kinematics

Car 1 moves with uniformly accelerated movement

$v_f^2=v_o^2+2a*d$ Formula (1)

d: displacement in meters (m)

v₀: initial speed in m/s

vf: final speed in m/s

a: acceleration in m/s²

Equivalences:

1mile = 1609.34 meters

1 hour = 3600s

1km = 1000m

Known data

$v_o = 69\frac{mile}{hour} *1609.34\frac{meter}{mile} *\frac{1}{3600}\frac{hour}{s}=30.8 \frac{m}{s}$

$v_f= \frac{69}{2} \frac{mile}{hour} =34.5\frac{mile}{hour}=15.4 \frac{m}{s}$

a = -0.5 m/s²

Distance calculation

We replace data in the Formula (1)

$15.4^2 = 30.8^2+2(-0.5)*d$

$2(0.5)*d = 30.8^2 - 15.4^2$

$d =\frac{ 30.8^2 - 15.4^2}{2(0.5) }= 717.6m$

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Answer:

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Δv = 12.5 m/s

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3 years ago

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Ok ok! It's A. Producer

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