Two boys on ice skates hold a rope between them. One boy is much heavier then the other ,Do both the boys move when only one boy pulls

Two masses one n times heavier than the other are dropped from same height. How do their momentum compare just before they hit the ground.

Express the following statements by equations : Each one of three boys had the same amount of money. They together gave Rs 25 to a poor student and are left with only Rs. 5.

Word Problem on Age A boy is now one third as old as his father. After 12 he will be half as old as his father. Find the present ages of both father and son.

the distance between two vertical poles is 100m and the height of one of them is double the other. The angle of elevation of their tops at the middle point of the line joining their feet are complimentary. Find the height.

Two tuning forks produce 4 beats per second when sounded together.On loading one of them the number of beats become 2 per second.Find the frequency of the loaded fork if that of the other is 510 Hz.

Two organ pipes one open at both ends,and the other open at one end only give their fundamental noteswhose frequencies differ by 25 vibration per second.The length of the open pipre is 96 cm.Calculate the length of the closed pipe if the velocity of sound in air is 330 m(s)^-1 .

Work Problem on Time and Work Four boys and four girls can do a piece of work in three days. While two boys and seven girls can do it four days. How long would it take to one boy or one girl to do the work.

Among 75 boys,25 play football,30 play cricket and 18 play both.Find the number of boys who play neither of the two games.

A group consists of 4 girls and 7 boys.Ion how many ways can a tean of 5 members be selected so that the team has at least one boy and one girl?