Motion in a vertical circle and conservation of energy

A stone  tied to a string of length l is whirled around a vertical circle with the other end of the string at the centre. At a certain instant of time the stone is at the lowest position and has a speed u. What is the magnitude of change in its velocity as it reaches … Continue reading Motion in a vertical circle and conservation of energy

A Numerical Problem from Projectile Motion

A short is fired from a gun on the top of a hill 90m high with velocity 80m/s at an angle of 30 degree with the horizontal. Find the horizontal distance between the vertical line through the gun and the ponit where the shot strikes the ground? (Shilpa asked this question) Answer: Take Sy= -90m … Continue reading A Numerical Problem from Projectile Motion

An MCQ from Projectile motion

Devender posted this question: A plane is flying horizontally at 98m/s and releases an object, which reaches the ground in 10s. the angle made by it while hitting the ground is (a) 55 degree (b) 45 degree (c) 60 degree (d) 75 degree

A bullet of mass 20g enters into a fixed block with aspeed 40m/s and stops in it. find the change in internal energy during the process.

A bullet of mass 20 g enters into a fixed block with a speed 40m/s and stops in it. find the change in internal energy during the process? Harsh Asked. The question is open to visitors to post answer as comment

+2 Physics :: Problem Solving Tactics in Physics

Physics is often refered to as a Problem Solving Discipline. One who has acquired the skills of problem solving will certainly excel in Physics. The students who learn +2 Physics mainly complain on the difficulties in Problem Solving. It is very essential to get trained in solving problems in Physics from as many sources as … Continue reading +2 Physics :: Problem Solving Tactics in Physics