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3 years ago

Question 2 - If Juan starts out at 10m/s, and in 15 s speeds up to 60 m/s, what is his acceleration?

Physics

1 answer:

34kurt3 years ago

5 0

Answer:

B) 3.33 m/s²

Explanation:

Given that,

The initial velocity of Juan, u = 10 m/s

Final velocity of Juan, v = 60 m/s

Time taken, t = 15 s

The acceleration is given by the relation

a = v-u/t m/s²

Substituting in the above equation

a = 60 - 10 / 15

a = 3.33 m/s²

Hence, the acceleration of the Juan is, a = 3.33 m/s²

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2 years ago

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3 years ago

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Answer:

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3 years ago

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3 years ago

When a magnetic field is first turned on, the flux through a 20-turn loop varies with time according to Φm=5.0t2−2.0t, where Φm

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Answer:

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Explanation:

Given data:

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E = - N $\frac{d\beta }{dt}$

= - N ( 10t - 2 ) = - 20 ( 10t - 2 )

= - 200t + 40 volts

<u>b) Determine direction of induced current </u>

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ii) at t = 0.10

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iii) at t = 1

E = - 200 + 40 = - 160 ( clockwise direction)

iv) at t = 2

E = -400 + 40 = - 360 ( clockwise direction )

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2 years ago