(II) What will a spring scale read for the weight of a 58.0‑kg woman in an elevator that moves
(d) with a downward acceleration 0.18 g, and

(II) A rocket with a mass of 2.45 x 10⁶ kg is launched by exerting a vertical force of 3.55 x 10⁷ N on the gases it expels. Determine

(a) the acceleration of the rocket, Assume g remains constant, and ignore the mass of gas expelled (not realistic).

(II) A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.75 of her regular weight. Calculate the acceleration of the elevator, and find the direction of acceleration.

(II) What will a spring scale read for the weight of a 58.0‑kg woman in an elevator that moves

(a) upward with constant speed 4.4 m/s,

(II) What will a spring scale read for the weight of a 58.0‑kg woman in an elevator that moves

(b) downward with constant speed 4.4 m/s,

(II) An exceptional standing jump would raise a person 0.80 m off the ground. To do this, what force must a 68-kg person exert against the ground? Assume the person crouches a distance of 0.20 m prior to jumping, and thus the upward force has this distance to act over before he leaves the ground.

(II) What will a spring scale read for the weight of a 58.0‑kg woman in an elevator that moves

(e) in free fall?

(II) An 18.0-kg monkey hangs from a cord suspended from the ceiling of an elevator. The cord can withstand a tension of 215 N and breaks as the elevator accelerates. What was the elevator's minimum acceleration (magnitude and direction)?

(III) Determine a formula for the acceleration of the system shown in Fig. 4–49 (see Problem 55) if the cord has a non-negligible mass m_C . Specify in terms of ℓ_A and ℓ_B , the lengths of cord from the respective masses to the pulley. (The total cord length is ℓ_A + ℓ_B.) <IMAGE>