The same mass. A space probe flies past Neptune with a speed of 50,000 miles/hr.

Question

The same mass. A space probe flies past Neptune with a speed of 50,000 miles/hr. Then, fuel almost entirely depleted, it heads out of the Solar System towards the emptiness of interstellar space (no gravity or friction). What does the immediate future (say the next few days) hold in store for the probe? a) It will continue on a straight line course at 50.000 mi/hr. b) It will slowly speed up. c) It will gradually slow down and come to a full stop. __ What is the weight of a 150 kg tiger (sea level)? A man whirls a flaming torch, tied to a string, in a horizontal circle. The string is 3m long. The mass of the torch is 2 kg. The speed of the torch is 6 m/s. What is the centripetal force on the torch? __

Explanation / Answer

5 ) Since there is no gravitational force there a) It will continue on straight line..

6) Weight of 150 kg tiger = 150*9.8 = 1470 N

7) Centripetal force= mV2/R = 2*62/3 = 24 N

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