physics

Francesca, who likes physics experiments, dangles her watch from a thin piece of string while the jetliner she is in takes off from JFK Airport. She notices that the string makes an angle of 25° with respect to the vertical as the aircraft accelerates for takeoff, which takes about 18 s. Estimate the takeoff speed of the aircraft.

asked by Scar
  1. 78

    posted by hgy
  2. 2.0 Points
    What follows is a calculated question with 1 blanks. A box is given a push so that it slides across the floor. Given that the coefficient of kinetic friction is 0.4 and the push imparts an initial speed of 2.6 m/s, the total distance travelled by the box is m.

    posted by Amukelani

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