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trasher [3.6K]
3 years ago
5

Newton’s first law of motion was a giant leap forward in scientific thought during Newton’s time. Even today, the idea is someti

mes difficult at first for people to understand. Which statement is the best example of an object and motion that would make it hard for people to believe Newton’s first law? A rolling ball eventually slows down and comes to a stop. A wagon must be pushed before it begins to move. The heavier the load in a cart, the harder the cart is to turn. A box does not move when pushed equally from opposite sides.
Physics
2 answers:
Vinvika [58]3 years ago
5 0

Answer:

The heavier the load in a cart, the harder the cart is to turn.

alexdok [17]3 years ago
3 0

Answer: A rolling ball eventually slows down and comes to a stop.

Explanation: Right on Edge2020, not C or B or D.

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How long does a car (1000 kg) have a speed of 30 m/s from a rest if the engine power is 10kw
Lemur [1.5K]

Answer: 90.1 s

Explanation:

Use equation for power:

P=F*V

Use eqation for force:

F=ma

F---force

V---velocity

Vr=om/s

V=30m/s

m=1000kg

P=10000W

---------------------------

P=FV

F=P/V

F=10000W/30m/s

F=333.33N

Use equation for force to find accelartaion.

F=ma

a=F/m

a=333.33N/1000kg

a=0.333 m/s²

Use equation for accelaration to find out time:

a=(V-Vs)/t

t=(V-Vs)/a

t=(30m/s)/(0.333m/s²)

t=90.09 s≈90.1 s

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Answer:

1. energy lost in the lever due to friction

3. visual estimation of height of the beanbag

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Explanation:

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