joelinho

A man of mass 60kg standing inside a lift with an acceleration of 2m/s(square).Find the apparent weight that a man feels(g is 10).

a box of treasure with a mass of 92 kg and volume of 0.031metrecubic lies at the bottom of the ocean.how much force is needed to lift it?

a string supports a solid iron object of mass 180g totally immersed in liquid of density 800kg/m3. calculate the tension in the string if the density of iron is 8000kg/m3.

let x and y be component by vertical motion only Vo (200ft/s) are; Vxo=200Cos 30=173.2ft/s Vyo=200sin 30=100ft/s so we should find the time of flight (t) and this is determined by vertical motion only. For vertical motion h=Voyt+1/2gt(square) h=Voyt+1/2gt...