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UNO [17]
4 years ago
13

Question: A car drives around a roundabout at 30km/h.

Physics
2 answers:
grandymaker [24]4 years ago
7 0

yes it will as the car is moving in a circular motion it will accelerate

this is one of a law...

hope it helps,,,...

Naddika [18.5K]4 years ago
7 0

Any change in the speed OR direction of motion is acceleration.  Driving through the circular roundabout, the direction of the car's motion is constantly changing to stay on the circle. So the car is accelerating, even though its speed is constant.

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A small asteroid with a mass of 1500 kg moves near the earth. At a particular instant the asteroid’s velocity is ⟨3.5 × 104, −1.
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Answer:

P_{f} =(5.7 x 10^{7 i - 2.24 x 10^{7 j) kgm/s

Explanation:

Due to earths gravity, force on asteroid is given by:

F= \frac{Gm_{1}m_{2} }{r^{2} } r^

Plugging in the values, we have

F= [(6.67x10^{-11})(1500)(5.97 x 10^{24})(8x10^{6}i + 9x10^{6 j)] / ((8x10^{6})² + (9x10^{6 )²)^{1.5}

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P_{f} = 1500(3.5 x 10^{4 i - 1.8x10^{4 j) + (2736i + 3078j)(1.5x10^{3)

P_{f} =(5.7 x 10^{7  i- 2.24 x 10^{7 j)kgm/s

4 0
4 years ago
Question 2 (1 point)
love history [14]

Answer:

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4 years ago
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A 300-g chunk of ice (of density 0.900 g/cm3) is placed in a water bucket. A 20.0-g rock, with a volume of 2.00 cm3, is placed o
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3 years ago
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