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lisabon 2012 [21]
3 years ago
5

A girl runs once around a circular track with a radius of 100m at speed of 10m/s.

Physics
1 answer:
goblinko [34]3 years ago
5 0

Answer:

0 m

Explanation:

Displacement is the shortest distance from one ppont to another. Here, the girl returns to the same spot after running. Hence, displacement is <u>0</u><u> </u><u>m</u>.

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Rick is moving a wheelbarrow full of bricks out to the curb. The bricks in the wheelbarrow weigh more than Rick is able to carry
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Answer is given below

Explanation:

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what will be the moment of inertia of a body if it rotates at a uniform rate of 10rad/sec^2 by a torque of 120Nm?​
Naya [18.7K]

Answer:

12 kgm²

Explanation:

here angular acceleration = 10rad/sec²

torque= 120Nm

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we know,

torque= angular acceleration× moment of Inertia

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7 0
3 years ago
A rope exerts a 280 N force while pulling an 80 Kg skier upward along a hill inclined at 12o. The rope pulls parallel to the hil
user100 [1]

Answer:

The speed of the skier after moving 100 m up the slope are of V= 25.23 m/s.

Explanation:

F= 280 N

m= 80 kg

α= 12º

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g= 9,8 m/s²

N= m*g*sin(α)

N= 163 Newtons

Fr= μ * N

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4 0
3 years ago
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