Question

How do you explain that an object is in uniform circular motion (AS)​

Answer 1

Answer:

An object undergoing uniform circular motion is moving with a constant speed. Nonetheless, it is accelerating due to its change in direction. The direction of the acceleration is inwards.

(b) Separation between earth and moon is 384.4×10

6

meter.

Centripetal force = force of attraction

r

mv

2

=

r

2

GM

e

m

Centripetal acceleration =

r

v

2

=

r

2

GM

e

=

(384.4×10

6

)

2

6.67×10

−11

×5.97×10

24

=2.69×10

−3

ms

−2

Hence, acceleration toward earth is 2.69×10

−3

ms

−2

Answer 2

Explanation:

when a body moves in a circular path with uniform speed its motion is called uniform circular motion .

• uniform circular motion can be described as the motion of an object in a circle at a constant speed .
• as object moves in a circle , it is constantly changing its direction at all instances .

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