A steel rod of 1 m is supported at its ends so that it remains horizontal. Three spheres of masses 4 kg, 6 kg, 8 kg, are suspended from 15 cm, 40 cm and 80 cm marks respectively . If weight of rod is 2 kg wt, calculate the reaction at each support.`( g= 9.8 m//s^2)`

A steel bar AB of mass 10 kg and length 1 m is kept horizontal by supporting it at the two ends. Two weights of 4 kg and 6 kg are suspended from points of the bar at distances 30 cm and 80 cm respectively from the end A. The reaction at the end A is

Choose the correct options A steel bar AB of mass 10 kg and length 1 m is kept horizontal by supporting it at the two ends. Two weights of 4 kg and 6 kg are suspended from points of the bar at distances 30 cm and 80 cm respectively from the end A. The reaction at A is

A wire of mass 0.5 gram and length of 0.5 m is under a tension of 2 kg wt. Calculate the frequency of its fundamental mode. (g = 9.8 m/s^2)

What is the weight of a body of mass 100 kg at the south pole ? (g=9.832 m/s^2)

What is the weight of a body of mass 20kg at the equator ?(g=9.78 m/s^2)

The coefficient of static friction between a block of mass 0.25 kg is 0.4. Calculate the force applied to it. (g = 9.8m//s^2)

A stone of mass 1 kg is whirled in horizontal circle attached at the end of a 1 m long string. If the string makes an angle of 30^@ with vertical, calculate the centripetal force acting on the stone. (g = 9.8 m/s^2)

Choose the correct options A uniform bar RS weighs 100 g and is 80 cm long. From the end R two masses 50 g and 100 g hung from the bar at a distance of 10 cm and 60 cm respectively. If the bar is to remain horizontal when balanced on a knife-edge, its position is____ A. 42 cm from S B. 38 cm from R C. 38 cm from G D. 42 cm from R

The vertical extension in a light spring by a weight of 1 kg suspended from the wire is 9.8 cm . The period of oscillation

6 m long see-saw remains horizontal when two children weighing 20 kg and 30 kg respectively sit at two ends. Where is the see-saw supported?