dear students, let’s analyze the oblique collision in two dimensional plane . here we are given, 2 balls of masses, m 1 and m 2, moving with initial speeds u 1 and u 2 in different directions, they collide at a point , and, bounce in different directions, with speeds v 1 and v 2 […]

in this example, it is given that a ball is released , from a height h above a floor with coefficient of restitution e , between floor and ball. we are required to find the number of bounces ball will take before coming to rest . and we are also required to find the total […]

in this example we are given two identical bars, which are connected by an ideal spring of natural length l knot, it is also given that its force constant is k , as shown , and a constant horizontal force f starts acting on one of the bars as shown, we are required to find […]

Two million kilometers away from Earth, out there in the frozen depths of space, there lurks a giant 500 meter-wide asteroid, one that could eventually collide with Earth! And right now a NASA spacecraft is orbiting this asteroid, studying its every detail. The Osiris-Rex probe arrived at BENNU, the asteroid in question, back in December […]

in this example it is given that a neutron moving at a speed v undergoes a head on elastic collision with a nucleus of mass number-a at rest . we are required to find the ratio of ki-netic energies of neutron after and before collision. now, let’s analyze this situation, we are given that a […]

Perhaps you have seen this very strong job application for NASA’s Planetary Protection Officer from Jack, a fourth-grade Guardian of the Galaxy. Or maybe you’ve seen some of the pretty sensationalist headlines describing the job as “saving the Earth from aliens.” And if you’ve broken one of the cardinal rules of the Internet and read […]