An object is projected vertically upwards with velocity 50 m/s. Find: The height it reaches ( Take g = 10 m/sq s )

Water is flowing in a metal pipe. The pipe OD (outside diameter) is 61 cm. The pipe length is 120 m. The pipe wall thickness is 0.9 cm. The empty weight of the metal pipe is 2500 N/m. In kN, what is the total weight (pipe plus water)?

A ship displaces 4000 cubic feet of sea water. Find the volume of water that the ship will displace in fresh water

A tank of water has a trap door inclined at an angle to the horizontal, as shown in Figure Q4. The door is square, with a length and width of L, and the hinge of the door is a depth ho below the surface. The water is stationary and has a density, p. a) Find the horiztonal force on the door due to static pressure b) Find the vertical force on the door due to static pressure c) Find the moment on the door hinge due to static pressure . d) The weight of the door induces a anti-clockwise moment, Mw, which acts to stop the door from opening. Find the ho such that the static pressure is large enough to open the door M F. TO L bo V