Laws of MotionHard
Question
A coin is thrown off from a gramophone record with coefficient of friction 0.4 when it makes 50 rpm. If an identical coin is placed over the previous one, they will be thrown off when the number of rpm is :-
Options
A.50
B.25
C.100
D.None of these
More Laws of Motion Questions
The coefficient of static friction between two surfaces depend on...A car is going at speed of 6m/s when it encounters a 15 m slope of angle 300. The friction coefficient between the road ...What is the maximum value of the force F such that the block shown in the arrangement, does not move :-...An inclined plane makes an angles 30o with the horizontal. A groove OA = 5m cut in the plane makes an angle with 30o wit...A body of mass 100g is sliding on a inclined plane with an inclination of 600. What is the fricitional force experienced...