All categories

2 years ago

A rocket is traveling toward the earth at 12c when it ejects a missile forward at 12c relative to the rocket.

Physics

1 answer:

Ahat [919]2 years ago

4 0

The correct value for the rocket speed measured by an observer on earth would be = 14c

<h3>Calculation and of the rocket speed</h3>

To calculate the speed of the rocket we should observe that the rocket and the missile are in a relative motion which are moving on the same direction.

The speed of the rocket = 12c

The speed of the missile = 12c

The individual speed of earth =0c

But, the relative speed of the missile and the Earth is the sum of individual speeds.

Thus, the speed of rocket as measured by an observer on the Earth would be 0 + 14c = 14c.

Therefore, the correct value for the rocket speed measured by an observer on earth would be =14c

Learn more about relative motion here:

brainly.com/question/17228388

#SPJ1

You might be interested in

What are some indicators that a chemical reaction is occurring? Check all that apply.

Paul [167]

The formation of bubbles, a change in color, and the formation of a precipitate (1, 3, & 5) are all indicators that a chemical reaction is occurring.

6 0

3 years ago

Read 2 more answers

Compare each pair of numbers using <, > or =.

Effectus [21]

Answer:

A. 56 cm < 6 m

B. 7 g > 698 mg

C. 19 g > .021k

4 0

3 years ago

1. According to Newton's Second Law of Motion, a net force of an object will cause it to accelerate. How does the Newton's law r

Galina-37 [17]

The gravitational field strength creates forces on mass by pulling it towards the centre the equation is weight=mass*gravitational field strength

5 0

3 years ago

How do I do this, did I draw the label right and did i use the right formula to find final velocity ?

telo118 [61]

Formula is right. And label looks right to me too

4 0

3 years ago

A garden hose with an internal diameter of 2.9 cm is connected to a (stationary) lawn sprinkler that consists merely of a contai

Alecsey [184]

Answer:

Water leaves the holes with a speed of 2.65 m/sec

Explanation:

It is given internal diameter of garden hose = 2.9 cm

So internal radius $r_1=\frac{2.9}{2}=1.45cm$

Number of holes n = 24

Diameter of holes d = 0.36 cm

So radius of holes $r_2=\frac{0.36}{2}=0.18cm$

Velocity of water in hose $v_1=0.98m/sec$

According to continuity equation

$A_1v_1=nA_2v_2$

$\pi r_1^2\times 0.98=24\times \pi r_2^2\times \times v_2$

$1.45^2\times 0.98=24\times 0.18^2\times \times v_2$

$v_2=2.65m/sec$

Therefore water leaves the holes with a speed of 2.65 m/sec

3 0

4 years ago