Alia runs her toy car on a dry marble floor, wet marble floor, newspaper and towel spread on the floor. The force of friction acting on the car on different surfaced in increasing order will be?

A body of weight 64 N' is pushed with justs enough force to start it move in across a horizontal floor and the same force continues to act afterwards. If the coefficients of static and dynamic friction are 0.6 and 0.4 respectively, the acceleration of the body will be (Acceleration due to gravity = g):

A body of mass 'm' is kept on the horizontal floor and it is pushed in the horizontal direction with a force of 10N continuously, so that it moves stadily. (a) Draw FBD (a diagram showing all the foreces acting on the body aty a point of time) (b) What is the value of friction ?

Block A of mass 2 kg is placed over block B of mass 8 kg .The combination is placed over a rough horizonatal surface .Cofficient of friction between B and the floor is 0.5 .Coefficient of friction berween A and B is 0.4 .A horizontal force of 10 N is applied on block B .The force of friction between A and B is (g=10 m s^(-2))

Two blocks m_(1)=1kg , m_(2)=2kg are placed one upon the other. m_(1) is kept on m_(2) . The force of static friction between m_(1) and m_(2) is 0.2 and between m_(2) and the horizontal surface and the floor is 0.28 . Calculate the maximum force that can be applied on m_(2) so that m_(1) and m_(2) does not get separated. (g=10ms^(-2))

Mention against each of the following wheather regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case. Marble floor with water spread over it .