At time t = 0 a 2150 kg rocket in outer space fires an engine that exerts an increasing force on it in the +x-direction. This force obeys the equation Fx = At2, where t is time, and has a magnitude of 781.25 N when t = 1.25 s. (a) Find the SI value of the constant A, including its units. (b) What impulse does the engine exert on the rocket during the 1.50 s interval starting 2.00 s after the engine is fired? (c) By how much does the rocket’s velocity change during this interval? Assume constant mass.
At time t = 0 a 2150 kg rocket in outer space fires an engine that exerts an increasing force on it in the +x-direction. This force obeys the equation Fx = At2, where t is time, and has a magnitude of 781.25 N when t = 1.25 s. (a) Find the SI value of the constant A, including its units. (b) What impulse does the engine exert on the rocket during the 1.50 s interval starting 2.00 s after the engine is fired? (c) By how much does the rocket’s velocity change during this interval? Assume constant mass.
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At time t = 0 a 2150 kg rocket in outer space fires an engine
that exerts an increasing force on it in the +x-direction. This force obeys
the equation Fx = At2, where t is time, and has a magnitude of 781.25 N
when t = 1.25 s. (a) Find the SI value of the constant A, including its units.
(b) What impulse does the engine exert on the rocket during the 1.50 s
interval starting 2.00 s after the engine is fired? (c) By how much does the
rocket’s velocity change during this interval? Assume constant mass.
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