Question

A 1400 kg weather rocket accelerates upward at 10m/s2. It explodes 1.5 s after liftoff and breaks into two fragments, one twice as massive as the other. Photos reveal that the lighter fragment traveled straight up and reached a maximum height of 500 m .

What was the speed of the heavier fragment just after the explosion?

Express your answer using two significant figures.

Answer #1

A 1600 kgkg weather rocket accelerates upward at 10m/s2m/s2. It
explodes 2.2 ss after liftoff and breaks into two fragments, one
twice as massive as the other. Photos reveal that the lighter
fragment traveled straight up and reached a maximum height of 500
mm .
What was the speed of the heavier fragment just after the
explosion?
Express your answer in meters per second.

1460 kg weather rocket accelerates upward at 12 m/s2. It
explodes 2.0 s after liftoff and breaks into two fragments, one
twice as massive as the other. Photos reveal that the lighter
fragment traveled straight up and reached a maximum height of 530
m. What were the speed and direction of the heavier fragment just
after the explosion?

A) A 1500 kg weather rocket accelerates upward at
10m/s2. It explodes 1.7 s after liftoff and breaks into two
fragments, one twice as massive as the other. Photos reveal that
the lighter fragment traveled straight up and reached a maximum
height of 520 m .What was the speed of the heavier
fragment just after the explosion?
B) A tennis player swings her 1000 g racket with a speed
of 9.0 m/s . She hits a 60 g tennis ball...

1.) A 1500kg weather rocket accelerates upward at 10 m/s^2. It
explodes 2s after liftoff and breaks into two fragments, one twice
as massive as the other. Photos reveal that the lighter fragment
traveled straight up and reached a maximum height of 530m. What was
the speed and direction of the heavier fragment just after the
explosion? Include a free body diagram.
2.) The maximum energy a bone can absorb without breaking is
surprisingly small. For a healthy human of...

A model rocket is launched straight upward with an initial speed
of 59.0 m/s. It accelerates with a constant upward acceleration of
2.50 m/s2 until its engines stop at an altitude of 160
m.
(a) What can you say about the motion of the rocket after its
engines stop?
(b) What is the maximum height reached by the rocket?
(c) How long after liftoff does the rocket reach its maximum
height?
(d) How long is the rocket in the air?

A 4-kg projectile travels with a horizontal velocity of 600 m/s
before it explodes and breaks into two fragments A and B of mass
1.5 kg and 2.5 kg, respectively. If the fragments travel along the
parabolic trajectories shown, determine the magnitude of velocity
of each fragment just after the explosion and the horizontal
distance where segment B strikes the ground at D.

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