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kvasek [131]
2 years ago
7

A small rocket to gather weather data is launched straight up. Several seconds into the flight, its velocity is 140 m/s and it i

s accelerating at 20 m/s2 . At this instant, the rocket's mass is 51 kg and it is losing mass at the rate of 0.50 kg/s as it burns fuel. What is the net force on the rocket?
Physics
1 answer:
Free_Kalibri [48]2 years ago
7 0

Explanation:

The force will be 98 N....

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A pump is used to transport water to a higher reservoir. if the water temperature is 15ºc, determine the lowest pressure that ca
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A passenger in a train accelerating smoothly away from a station observes that a child’s yo-yo hanging by its string from a lugg
olchik [2.2K]

Answer:

1.73 m/s²

3.0 cm

Explanation:

Draw a free body diagram of the yo-yo.  There are two forces: weight force mg pulling down, and tension force T pulling up 10° from the vertical.

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D = mg

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½ ρₐ v² C (πr²) = ρᵢ (4/3 πr³) g

3 ρₐ v² C = 8 ρᵢ r g

r = 3 ρₐ v² C / (8 ρᵢ g)

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r = 0.030 m

r = 3.0 cm

3 0
3 years ago
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