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3 years ago

What is negative acceleration?

2 answers:

7 0

An object which moves in the positive direction has a positive velocity. If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion in this case a negative acceleration.

Whitepunk [10]3 years ago

3 0

Answer:

Explanation:

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The refractive index of glass is 1.52

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Explanation:

..upper side is glass ..

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Ways in which a teacher plays a role in the literacy development of the learners

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encourage all attempts at reading, writing, and speaking

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2 years ago

Match the change of state of matter to the term:

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Sup Milk,

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6 0

3 years ago

Read 2 more answers

A merry-go-round with a a radius of R = 1.9 m and moment of inertia I = 209 kg-m2 is spinning with an initial angular speed of ω

RideAnS [48]

Answer:

340.67 kgm²/s

Explanation:

R = Radius of merry-go-round = 1.9 m

I = Moment of inertia = 209 kgm²

$\omega_i$ = Initial angular velocity = 1.63 rad/s

m = Mass of person = 73 kg

v = Velocity = 4.8 m/s

Initial angular momentum is given by

$L=I\omega_i\\\Rightarrow L=209\times 1.63\\\Rightarrow L=340.67\ kgm^2/s$

The initial angular momentum of the merry-go-round is 340.67 kgm²/s

8 0

3 years ago