Q. a particle of mass m is dropped near earth surface. in addition to gravity (g = const), a drag force kv acts on the particle. find speed after time t and plo

Q. A particle of mass m is dropped near earth surface. In addition to gravity (g = const), a drag force kv acts on the particle. Find speed after time t and Plot speed verses time. Equation of motion for particle is given by Sol. F mg kv (Drag force always acts opposite to velocity) dv m mg kV. dt X = 0 V = 0 t 0 dv g-kv dt mn dv mg (g-kv/m) x direction n =t+C k t = 0, V = 0 and C = ng 291 Contact Us: Website www.eduncle.com Email: support@eduncle.com Call Us: 7665435300