A particle is describing uniform circular motion on a circle of radius 5 cm with speed of 10cm/s,it's centripetal acceleration will be
A)50cm s^-2
B)2cm s^-2
C)2.5cm s^-2
D)20cm s^-2
A)50cm s^-2
B)2cm s^-2
C)2.5cm s^-2
D)20cm s^-2
Add an Answer
More Questions From This User See All
Answers & Comments
Verified answer
Answer :-
Centripetal acceleration of the particle will be 20 cm/s² [Option.D]
Explanation :-
We have :-
→ Radius of the circle = 5 cm
→ Speed of the particle = 10 cm/s
________________________________
We know that, when a particle is undergoing uniform circular motion, then it's acceleration is given by :-
a꜀ = v²/r
Where :-
• a꜀ is the centripetal acceleration.
• v is speed of the particle.
• r is radius of the circle.
Substituting values, we get :-
⇒ a꜀ = v²/r
⇒ a꜀ = (10)²/5
⇒ a꜀ = 100/5
⇒ a꜀ = 20 cm/s²