A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 995 and 1450 N, respectively. The acceleration of the cable is 0.620 m/s2, upward.
(a) What is the tension in the cable below the worker?
N
(b) What is the tension in the cable above the worker?
N
The space probe Deep Space I was launched on October 24, 1998. Its mass was 474 kg. The goal of the mission was to test a new kind of engine called an ion propulsion drive. This engine generated only a weak thrust, but it could do so over long periods of time with the consumption of only small amounts of fuel. The mission was spetacularly successful. At a thrust of 53 mN how many days were required for the probe to attain a velocity of 895 m/s (2002 mi/h), assuming that the probe started from rest and that the mass remained nearly constant?
