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2 years ago

12

A dog is running. His human calls to him and he accelerates at 2.74 m/s/s. 3.63 seconds later, his velocity is 10.3 m/s. What wa

s his initial velocity

1 answer:

Harlamova29_29 [7]2 years ago

8 0

Answer:

0.35 m/s

Explanation:

A = v-u/t

2.74 = 10.3 - u/3.63

x 3.63

2.74 x 3.63 = 10.3 - u

+u (both sides)

u + (2.74x3.63) = 10.3

- (2.74 x 3.63)

u = 10.3 - (2.74 x 3.63)

u = 0.3538

u = 0.35 to 2d.p

Hope this helps!

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Answer:

Magnitude of angular acceleration = -3.95 rad/s²

Explanation:

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That is

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Radius = 72 cm = 0.72 m

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$\alpha =\frac{a}{r}=\frac{-2.85}{0.72}=-3.95rad/s^2$

Angular acceleration = -3.95 rad/s²

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Answer:

<h2>20 m/s²</h2>

Explanation:

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From the question we have

$a = \frac{2000}{100} = 20 \\$

We have the final answer as

<h3>20 m/s²</h3>

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Answer:

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3 years ago

Read 2 more answers