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When you apply a muscular force with a hammer to drive a nail into a wall, the force that primarily fixes the nail in the wall is friction . As the nail penetrates the wall, frictional forces between the nail and the material of the wall resist the nail's movement, helping to hold it in place. Additionally, the normal force from the wall material, which acts perpendicular to the surface of the nail, also contributes to keeping the nail fixed by increasing the frictional force.
The ratio of present ages of 'X' and 'Y' is 4:9, respectively. The difference between the ages of 'X' and 'Y' is 25 years. If the present age of 'Z' is ...
A student multiplied a number by 4/5 instead of 5/4. What is the percentage error in the calculation.
The average age of the husband, wife, and their child 4 years ago was 24 years and that of the husband and the child 5 years ago was 19 years. The pres...
Ten years ago, the average age of five employees was 35 years. The present average age is 45 years after the inclusion of two new employees. Find the pr...
4 years ago, the ratio of the ages of A and B was 2:3 and after 4 years it will become 4:5. Find their present ages.
A is younger than B by 5 years. If the ratio of A and B ages is 6:7 respectively, then find the age of A.
The combined current ages of A, B, and C amount to 75 years. Five years from now, A's age compared to C's will be in the ratio of 5:7. Currently, B is 2...
Two years ago, the ages of A, B, and C were x−6x - 6, x+10x + 10, and x+14x + 14 years respectively. If the average of their current ages is 38 years,...
P says to Q ‘’ I am thrice as old as you were when I was as old as you are’’. The sum of their ages is 100 years. Find the difference of their ...
The ratio of A and B present age is 9:4. The product of their ages is 3600. What will be the ratio of their ages after 5 years?
