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VashaNatasha [74]
3 years ago
8

a 2,400 kg car drives north towad a 60kg shopping cartthat has a velocity of zero the two objects collide giving the car a final

velocity 4.33m/s north and the shopping cart 8.88m/s north what is the in itial velocity of the car
Physics
1 answer:
Usimov [2.4K]3 years ago
7 0

Answer:

4.552m/s

Explanation:

V=\frac{m_{1}v_{1}+m_{2}v_{2}}{m_{1} } =\frac{2400*4.33+60*8.88}{2400}=4.552m/s

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4 years ago
Every football field has two 300kg field goal posts separated by 110m of football field (that includes the endzones). What is th
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Answer:

4.96×10¯¹⁰ N

Explanation:

The following data were obtained from the question:

Mass 1 (M1) = 300 Kg

Mass 2 (M2) = 300 Kg

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The gravitational force between the two goal posts can be obtained as follow:

F = GM1M2 / r²

F = 6.67×10¯¹¹ × 300 × 300 / 110²

F = 6.003×10¯⁶ / 12100

F = 4.96×10¯¹⁰ N

Therefore the gravitational force between the two goal posts is 4.96×10¯¹⁰ N

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Explanation:

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