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Qmechanic ♦
Qmechanic ♦
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A rocket is fired vertically and ascends with a constant vertical acceleration of 20 m/s^2 for 1 minute. It's fuel is then all used and it continues as a free particle. Find the-

  1. Maximum height reached by the particle

    Maximum height reached by the particle

  2. Total time elapsed from the take off till the rocket strikes the earth. I cannot understand this question practically. First of all does the acceleration include g in it . Also is it deacceleration or acceleration in this case. If it is acceleration then how can the velocity become zero in 60 sec. Also is the initial velocity zero ? I feel that there should be an initial velocity like in the case of projectile motion.

    Total time elapsed from the take off till the rocket strikes the earth.

    Please guide me in this question.

I cannot understand this question practically. First of all does the acceleration include $g$ in it . Also is it deacceleration or acceleration in this case. If it is acceleration then how can the velocity become zero in 60 sec. Also is the initial velocity zero ? I feel that there should be an initial velocity like in the case of projectile motion. Please guide me in this question.

A rocket is fired vertically and ascends with a constant vertical acceleration of 20 m/s^2 for 1 minute. It's fuel is then all used and it continues as a free particle. Find the-

  1. Maximum height reached by the particle
  2. Total time elapsed from the take off till the rocket strikes the earth. I cannot understand this question practically. First of all does the acceleration include g in it . Also is it deacceleration or acceleration in this case. If it is acceleration then how can the velocity become zero in 60 sec. Also is the initial velocity zero ? I feel that there should be an initial velocity like in the case of projectile motion. Please guide me in this question.

A rocket is fired vertically and ascends with a constant vertical acceleration of 20 m/s^2 for 1 minute. It's fuel is then all used and it continues as a free particle. Find the

  1. Maximum height reached by the particle

  2. Total time elapsed from the take off till the rocket strikes the earth.

I cannot understand this question practically. First of all does the acceleration include $g$ in it . Also is it deacceleration or acceleration in this case. If it is acceleration then how can the velocity become zero in 60 sec. Also is the initial velocity zero ? I feel that there should be an initial velocity like in the case of projectile motion. Please guide me in this question.

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geek101
geek101
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Kinematics problem involving rocket

A rocket is fired vertically and ascends with a constant vertical acceleration of 20 m/s^2 for 1 minute. It's fuel is then all used and it continues as a free particle. Find the-

  1. Maximum height reached by the particle
  2. Total time elapsed from the take off till the rocket strikes the earth. I cannot understand this question practically. First of all does the acceleration include g in it . Also is it deacceleration or acceleration in this case. If it is acceleration then how can the velocity become zero in 60 sec. Also is the initial velocity zero ? I feel that there should be an initial velocity like in the case of projectile motion. Please guide me in this question.