3.-Para despegar una aeronave de la pista necesita desarrollar una velocidad de 65 mi/h. a) ¿cuánto equivale esta velocidad en km/h? b) ¿cuánto en pies/s?
ayuda pliss

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p