Two cars cover the distance between two stations in 2 hours. The first car covers the first half of the distance at 20 kmph and the second half at 60 kmph and the second car covers the distance with uniform acceleration, starting with a velocity of 10 kmph.At what instant/instants will the two cars have [...]

A man with a constant time of reaction can stop his car within 30 m when its speed is 72 kmph and within 10 m when its speed is 36 kmph.What is the distance within which he can stop his car when speeding at 54 kmph ? A car accelerates from rest at a constant [...]

Two equal to masses are connected by a light string passing over a fixed frictionless pully. They are set in motion with uniform speed v. The mass going down is momentarily stopped and then released immediately. Calculate the time that will elapse before the string becomes tight again. A car accelerates from rest at a [...]

Every 10 mintues, two cars start simultaneously from two point AandB which are 60 km apart. The cars travel towards each other at 60 kmph. Find graphiclly how many cars will pass by a passenger in one of the cars between AandB. A car accelerates from rest at a constant rate α for some time [...]