- When an object of height 4cm is placed at 40cm from a mirror the mirror forms the image on the object itself. If the height of the image is equal to the height of the object. Find out the focal
1.if a man in a boat rows perpendicular to the bank he is drifted 120 m during crossing river in 10 minutes . if he heads at angle of alpha from upstream he crosses river by shortest path in 12.5 min. find width of river,velocity of river with respect to water,velocity of boat with respect [...]
Two bodies one held 40 m above other, are released simultaneously . After falling for 3 sec under gravity, their relative separation is? A particle covers half the distance between two points for equal time for V1 and V2 and other half with V3 an...
1.A machine gun has a mass of 20 kg. it fires 30g bullets at the rate of 400 bullets per second with a speed of 400 m/s. what force must be applied to the gun to keep it in position?
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