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A toy rocket with a mass of 300 g takes off in a vertical direction under the influence of gravity. It burns fuel at the rate of 25 g/s. The exhaust speed of the gases is 80 m/s. What is the speed of the rocket at the end of 10 seconds

Respuesta :

onyebuchinnaji

The speed of the rocket at the end of 10 seconds is 66.7 m/s.

Speed of the rocket at end of 10 seconds

The speed of the rocket at the end of 10 seconds is calculated as follows;

F = mv/t

where;

  • F is the force of the rocket
  • v is velocity of the rocket
  • t is time of motion
  • m is mass of the rocket

F = (m/t)v

F = (0.025 kg /s) x 80 m/s

F = 2 N

Acceleration of the rocket

F = ma

a = F/m

a = 2/(0.3)

a = 6.67 m/s²

Velocity after 10 seconds

v = at

v = 6.67 x 10

v = 66.7 m/s

Thus, the speed of the rocket at the end of 10 seconds is 66.7 m/s.

Learn more about speed here: https://brainly.com/question/6504879

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