una jabalina lanzada desde una altura de 2m a 30 grados sobre la horizontal llega a tierra con una distancia horizontal de 42m. Hallar la velocidad inicial, el tiempo de vuelo y la altura máxima

Why don't you see your reflection in water with waves or repples

14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands? a. no b. yes explain