Sarita bought 2/5 metre of ribbon and Lalita 3/4 metre of ribbon. What is the total length of the ribbon they bought?

Nasreen bought 3 m 20 cm cloth for her shirt and 2m 5cm cloth for her trouser. Find the total length of cloth bought by her.

A ball is released from the top of a tower of heighth metre. It takes T second to each the ground. What is the position of the ball at T/3 second ?

Three resistors 2Omega, 4Omega and 5Omega are connected in parallel. What is the total resistance of the combination?

A body falls on the ground from a height of 10 metre and rebounds to a height of 2.5 m. The ratio of the velocity of the body before collision to the velocity of the body after collision is:

Charges 2mC, 4mC and 6mC are placed at the three corners A, B and C respectively of a square ABCD of side x metre. Find, what charge must be placed at the fourth corner so that the total potential at the centre of the square is zero.

The position of a particle is given by r=3.0thati-2.0t^(2)hatj+4.0hatkm where t is in seconds and the coefficients have proper units for r to be in metres . (a) Find the v and a of the particle ? (b) What is the magnitude and direction of velocity of the particle at t=2.0s ?

The displacement of a particle moving in one dimension under the action of a constant force is related to timer by the equation t= sqrt(x + 3) , where x is in metres and in second. What is the displacement of particle when its velocity is zero?