An object of mass 2 kg moves with a velocity of 10 ms1 round at circle of radius 4 m. Calculate the centripetal force on the object
-
A.
25 N -
B.
100 N -
C.
50 N -
D.
40 N
Correct Answer: Option C
Explanation
Centripetal force,
F = ( frac{mv^2}{r} )
= ( frac{2 times 10^2}{4} )
= ( frac{200}{4} )= 50N