SATHEE: Kinematics Question 797

Kinematics Question 797

Question: What happens to the centripetal acceleration of a revolving body if you double the orbital speed $v$ and half the angular velocity $ω$

Options:

A) The centripetal acceleration remains unchanged

B) The centripetal acceleration is halved

C) The centripetal acceleration is doubled

D) The centripetal acceleration is quadrupled

Show Answer

Answer:

Correct Answer: A

Solution:

$a = \frac{v^{2}}{r} = v ω$

therefore $a^{'} = (2 v) (\frac{ω}{2}) = a$ i.e. remains constant.

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Kinematics Question 797

Question: What happens to the centripetal acceleration of a revolving body if you double the orbital speed v and half the angular velocity ω

Options:

Answer:

Solution:

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Question: What happens to the centripetal acceleration of a revolving body if you double the orbital speed $v$ and half the angular velocity $ω$