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Dafna1 [17]
3 years ago
13

39. A dog runs on a waxed floor at an initial speed of 2 m/s. It slides to a stop with an

Physics
1 answer:
Sedbober [7]3 years ago
5 0

Answer:

Explanation:

Use the one-dimensional equation

v_f=v_0+at where vf is the final velocity of the dog, v0 is the initial velocity of the dog, a is the acceleration of the dog, and t is the time it takesto reach that final velocity. For us:

0 = 2 + -.43t and

-2 = -.43t so

t = 4.7 seconds

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