13. A machine gun fires 10 bullets per second into a target. Each bullet weights 20 gm and had a speed of 1500m/s. Find the force necessary to hold the gun in position
13. A machine gun fires 10 bullets per second into a target. Each bullet weights 20 gm and had a speed of 1500m/s. Find the force necessary to hold the gun in position
14. A cyclist is going up a slope of 30° with a speed of 3.5m/s. If he stops pedaling, how much distance will he move before coming to rest? (Assume the friction to be negligible). Motion problem no 14. Sindh Textbook Board (stb) problems
12. A 50 grams bullet is fired into a 10kg block that is suspended by a long cord so that it can swing as a pendulum. If the block is displaced so that its centre of gravity rises by 10cm, what was the speed of the bullet? Motion problem no 12. Sindh Textbook Board (stb) problems