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A rocket blasts off from rest and attains a speed of 33.9 m/s in 12.7 s. An astronaut has a mass of 65.1 kg. What is the astronaut's
apparent weight during takeoff?



Answer :

asuwafohjames

The apparent weight of the astronaut of mass 65.1 kg moving with a speed of 33.9 m/s in 2.7 s is 811.797 N.

What is weight?

Weight is the force with which a body is attracted toward the earth or a celestial body by gravitation and which is equal to the product of the mass and the local gravitational acceleration.

To calculate the astronaut's apparent weight, we use the formula below.

Formula:

  • W = m{[(v-u)/t]+g}............ Equation 1

Where:

  • W = The apparent weight of the astronaut
  • m = Mass of the astronaut
  • v = Final speed
  • u = Initial speed
  • t = Time
  • g = Acceleration due to gravity

From the question,

Given:

  • m = 65.1 kg
  • v = 33.9 m/s
  • u = 0 m/s (from rest)
  • t = 12.7 s
  • g = 9.8 m/s²

Substitute these values into equation 1

  • W = 65.1{[(33.9-0)/12.7]+9.8]
  • W = 65.1×12.47
  • W = 811.797 N

Hence, the apparent weight of the astronaut is 811.797 N.

Learn more about weight here: https://brainly.com/question/25973294

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