2 years ago

Chuck drove 35mi from Austin to San Marcos in 40min, stopped 30min for a hamburger, and then drove 45mi to San Antonio in 50min.

Physics

1 answer:

Effectus [21]2 years ago

5 0

Answer:

his average speed was 40 miles per hour

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PLEASE HELP!!!!!!! MT TIME FOR MY TEST IS ALMOST OVER!!!

pav-90 [236]

Answer:

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Explanation:

Let the natural length of the spring = L

100 = k(40 - L) (1)

200 = k(60 - L) (2)

(2)/(1): 2 = (60 - L)/(40 - L)

60 - L = 2(40 - L)

60 - L = 80 - 2L

2L - L = 80 - 60

L = 20

Sub it into (1):

100 = k(40 - 20) = 20k

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Hi there!

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