10th Class Karachi Board Exams Quizzes MCQs Quizzes Karachi Board 10th Class Physics Online Test 10

Question:
A 500-g ball moves in a horizontal circle 40 cm in radius at 4 m/s. Its centripetal acceleration is

Option A):
40 m/sec²
Option B):
10 m/sec²
Option C):
20 m/sec²
Option D):
80 m/sec²

Correct Answer is Option C):
20 m/sec²