In the first stage of a two-stagerocket, the rocket is fired from the launch pad starting from rest butwith a constant acceleration of 3.50 m/s2 upward. At 25.0 s after launch,the second stage fires for 10.0 s, which boosts the rocket’s velocity to132.5 m/s upward at 35.0 s after launch. This firing uses up all of thefuel, however, so after the second stage has finished firing, the onlyforce acting on the rocket is gravity. Ignore air resistance. How fast will the stagetwo rocket be moving just as it reaches the launch pad?
In the first stage of a two-stagerocket, the rocket is fired from the launch pad starting from rest butwith a constant acceleration of 3.50 m/s2 upward. At 25.0 s after launch,the second stage fires for 10.0 s, which boosts the rocket’s velocity to132.5 m/s upward at 35.0 s after launch. This firing uses up all of thefuel, however, so after the second stage has finished firing, the onlyforce acting on the rocket is gravity. Ignore air resistance. How fast will the stagetwo rocket be moving just as it reaches the launch pad?
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In the first stage of a two-stage
rocket, the rocket is fired from the launch pad starting from rest but
with a constant acceleration of 3.50 m/s2 upward. At 25.0 s after launch,
the second stage fires for 10.0 s, which boosts the rocket’s velocity to
132.5 m/s upward at 35.0 s after launch. This firing uses up all of the
fuel, however, so after the second stage has finished firing, the only
force acting on the rocket is gravity. Ignore air resistance. How fast will the stagetwo
rocket be moving just as it reaches the launch pad?
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