Swapnil, Aakash and Vinay begin to jog around a circular stadium. They complete one lap in 36 seconds, 48 seconds and 42 seconds

Ans.(i) He was facing problem in landing technique of Long Jump/ Mahesh was facing the problem of improper Landing in his long jump event so he didn’t win any medal...

The city of Calcutta was emerging as an administrative and commercial centre. It promised opportunities and bright future. The scroll painters and potters came to Kalighat in the hope of...

How distance along x axis is 110+y it must be 110+n

(b) Required time  = L.C.M of 24, 36 and 48  = 144 seconds  = 2 minutes 24 seconds

(b) Required time = L.C.M of 24, 36 and 30 = 360 seconds = 6 minutes

(c) After 5 minutes (before meeting), the top runner covers 2 rounds i.e., 400 m and the last runner covers 1 round i.e., 200 m. Top runner covers 800 m...

(a) Here, A and B are moving in opposite directions. So, Relative speed = 2 + 3 = 5 rounds/hour So, they cross each other 5 times in an hour...

(b) APEC is the group of 21 countries. APEC is short for Asia Pacific Economic Cooperation. This group of countries span half the surface of the earth and are home...

(b) A body moving with a uniform angular velocity ω on a circular path of radius r has radial acceleration equal ω2r directed towards the centre of the path.

(c) Bells will toll together again at a time, which is obtained by taking L.C.M. of their individual tolling intervals.  L.C.M. of 9, 12 and 15 = 180 min  They will toll...