A particle is projected with a speed u in air at angle θ with the horizontal. The particle explodes at the highest point of its path into two equal fragments, one of the fragments moving up straight with a speed u. The difference in time in which the two particle fall on the ground is (Assume it is at a height H at the time of explosion)

Anonymous User Physics 12 Sep, 2019 0 Answer 71 views

If inside a big circle exactly 24 small circles, each of radius 2, can be drawn in such a way that each small circle touches the big circle and also touches both its adjacent small circles, then radius of the big circle is?

Anonymous User Maths 09 Sep, 2019 0 Answer 169 views

Two particles of mass M = 3 kg each are kept on a horizontal circular platform on two mutually perpendicular radii at equal distance R = 1 m from the centre of the table. The particles are connected with a string, which is just taught when the platform is not rotating. Coefficient of friction between the platform and block is  = 0.1. Then the maximum angular speed ( in rad/sec) of platform about its centre so that the blocks remain stationary relative to platform. (take g = 10 m/s2)

Anonymous User Physics 09 Sep, 2019 1 Answer 1480 views

A spring is compressed between two blocks of masses m1 and m2 placed on a horizontal frictionless surface. When the blocks are released. The blocks travel distance x1 and x2 respectively before coming to rest. The ratio x1/x2 is?

Anonymous User Physics 09 Sep, 2019 1 Answer 701 views

it takes 2s for a sound wave to travel b/w 2 fixed points when day temp is 10deg cal if temp rise to 30 deg cal sound wave travels b/w same fixed points

Anonymous User Mathematical physics 17 Aug, 2019 1 Answer 87 views

A uniform solid hemisphere of radius 10 m and mass 64 kg is placed with its curved surface on the smooth horizontal surface and a string AB of length 4m is attached to point A on its rim as shown in the figure. Find the tension in the string if hemisphere is in equilibrium.

Anonymous User Physics 15 Aug, 2019 1 Answer 398 views

A uniform rod of mass M and length L is free to rotate about a frictionless pivot located L/3 from one end. The rod is released from rest incrementally away from being perfectly vertical, resulting in the rod rotating clockwise about the pivot. When the rod is horizontal, what is the magnitude of the tangential acceleration of its center of mass?

Anonymous User Physics 14 Aug, 2019 1 Answer 140 views

A triangular frame consists of three identical rods, each of mass m and length l. It rests upright on a horizontal smooth surface with its lower right corner against a stop about which the frame could pivot. A horizontal force of magnitude F is applied to the upper corner of the frame as shown in the figure. What is the largest value of F may have without causing the frame to pivot upward about the stop?


Anonymous User Physics 11 Aug, 2019 1 Answer 138 views

A uniform, solid cylinder having mass M and radius R is pulled by a horizontal force F acting through the center as shown. The cylinder rolls to the right without slipping. What is the magnitude of the force of friction between the cylinder and the ground?

Anonymous User Physics 11 Aug, 2019 1 Answer 208 views