In: Physics
A 1300-kg rocket has a net propulsion force of
60 kN (kiloNewtons). Over a short time period, it
uniformly speeds up from an initial velocity of 40
m/s to a final velocity of 55 m/s. Assume
that the mass of the rocket is constant during this time period and
that the net force is along the direction of motion.
A) What is the change in speed of the rocket in
m/s and in mph?
m/s
mph
Tries 0/2 |
B) What is the magnitude of the
impulse delivered to the rocket during this time
period?
kg*m/s
Tries 0/2 |
c) How long did it take for the rocket to speed up
from 40 m/s to 55 m/s?
s
Tries 0/2 |
D) What is the magnitude of the
acceleration of the rocket?
m/s2
Tries 0/2 |
E) What are the initial and final kinetic
energies of the rocket in kilojoules (kJ)?
KE initial: kJ
KE final: kJ
Tries 0/2 |
F) What is the net work done on the rocket in
kilojoules (kJ)?
kJ
Tries 0/2 |
G) How far did the rocket travel during this time
period?