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Nana76 [90]
3 years ago
14

A 6.2 kg cannonball is fires from a 280 kg cannon. The cannon recoils with a velocity of 4.9 m/s. What is the velocity of the ca

nnonball when it leaves the cannon?
Physics
1 answer:
lara [203]3 years ago
3 0

Answer:

666 bc its on its way to my house

Explanation:

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Answer:

a) 2·√10 seconds

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The speed with which Linda is running = 8.6 m/s

The point Jenny starts = The 80-m mark

The acceleration of Jenny = 1.0 m/s²

a) The time it takes Jenny to run from the 80-m mark to the 100-m mark, <em>t</em>, is given as follows

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b) The distance Linda runs in t = 2·√10 seconds, d = v × t

Given that Linda's velocity, v = 8.6 m/s, we have;

d = 8.0 × 2·√10 = 16·√10

The distance Linda runs in t = 2·√10 seconds = 16·√10 meters ≈ 50.6 meters

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Jenny's speed at the 100-m mark ≈ 6.325 m/s

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