Ask question

Ask question

All categories

2 years ago

15

A 700-kg car, driving at 29 m/s, hits a brick wall and rebounds with a speed of 4. 5 m/s. What is the car’s change in momentum d

ue to this collision?.

1 answer:

kodGreya [7K]2 years ago

4 0

Answer:

Explanation:

Change in car's momentum = 700 * [4.5 - {-29)] = 23,450 kgm/s

You might be interested in

Atoms contain empty space true or false

olga nikolaevna [1]

The answer would be false

5 0

3 years ago

The arrows on the diagram show the ocean floor spreading from the Redge what three kinds of evidence scientists have found suppo

Blizzard [7]

Edit: You do mean Ridge?

Rocks near Mid-Ocean Ridge are younger than rocks near the trenches.

Seismic data shows oceanic crust is sinking into the mantle at the trenches.

Matching bands of magnetic rock are found on either side of the Ridge. Earth's magnetic fields change these bands over time.

5 0

2 years ago

Famous comparative and superlative form

Helga [31]

Answer:

comparative----more famous, superlative----- most famous

3 0

2 years ago

Read 2 more answers

How can i be a basketball player

kondaur [170]

Try practicing basketball in your free time and learn to love it. You can also apply to schools or teams that teaches basketball more. Get good teachers.

3 0

1 year ago

Read 2 more answers

A 11.0 kg test rocket is fired vertically from Cape Canaveral. Its fuel gives it a kinetic energy of 1985 J by the time the rock

nirvana33 [79]

Answer:

h = 18.41 m

Explanation:

Given that,

Mass of a test rocket, m = 11 kg

Its fuel gives it a kinetic energy of 1985 J by the time the rocket engine burns all of the fuel.

According to the law of conservation of energy,

PE = KE = mgh

h is height will the rocket rise

$h=\dfrac{E}{mg}\\\\h=\dfrac{1985 }{11\times 9.8}\\\\h=18.41\ m$

So, the rocket will rise to a height of 18.41 m.

5 0

2 years ago