A 5-cm-diameter horizontal jet of water with a velocity of 40 m/s relative to the ground strikes a flat plate that is moving in the same direction as the jet at a velocity of 10 m/s. The water splatters in all directions in the plane of the plate. How much force does the water stream exert on the plate?

A 40.0 kg child is standing on a 42 kg raft that is drifting with a velocity 0f 1.2 m/s [N]relative to the water. The child walks on the raft with a net velocity of 0.71 m/s [E]relative to the water. Fluid friction between the raft and the water is negligible.Determine the resulting velocity of the raft relative to the water. i and j vectors are notpermitted. Please don't use a previously answered question, draw a diagram and dont forget the angles. Thanks

A 400 g cart is moving along a horizontal, frictionless surface at a constant speed of30 cm/s. A 100 g piece of modelling clay is dropped vertically onto the cart from above. (a) Calculate the final speed of the system (clay + cart) if the clay sticks to the cart.(b) The cart has been slowed down a little bit after the clay sticks to the cart. Whattype of force caused the (negative) acceleration of the cart? What object applied this force?(c) Before it hit the cart the clay was moving downwards and therefore possesseddownwards momentum; after it hit the cart it stopped moving downwards. Why was theclay’s momentum not conserved as it hit the cart? What type of force caused the clay to stopmoving downwards? What object now possesses the clay’s downwards momentum?

Find the center of mass of a one-meter long rod, made of 50 cm of iron (density 8 g/cm3 ) and 50 cm of aluminum (density 2.7 g/cm3 ).