Physics Middle School

I desperately need help on my last problem! Please help!

A moving car of mass 500 kg collides with a stationary truck of mass 1500 kg, and the two vehicles lock together on impact. The combined velocity of the car and truck after the collision is 20 m/s. The velocity of the car before the collision is _______ m/s.

What is the velocity of the car before the collision?

Answers

Answer 1

Answer:

The car was approximately moving at 80m/s

Answer 2
The velocity of the car before the collision is 80 m/s :)

Related Questions

A tennis ball forgotten on the court after match is:
A. Potential energy
B. Kinetic energy
C. Forgotten energy

Answers

C is what i always have so ima go with C.

Answer:

A. or C. but I think A.

Explanation on:

It's potential because it's not in motion so it can't be kinetic but somebody can pick it up any moment.

give me 4 examples of newtons 1st law 2nd law adn 3rd law

pls be creative this is due tomorrow and creativity is counted

Answers

Answer:

1st Law: A book lying on the table remains at rest as long as no net force acts on it.

A rolling ball on rough surface or ground stops earlier than on the smooth surface because rough surfaces offer more friction than a smooth surface.

A stone in the ground is in a state of rest.

The marathoner continues to run several meters beyond the finish line due to the law of inertia of his career.

2nd Law: Pushing a broken down car among more people will make the car move faster.

A lady teaches two children to ride a bicycle: one 4-year-old and the other 10-year-old, so that they arrive at the same place, they will have to exert more force when pushing the 10-year-old boy because his weight is greater.

A car needs a certain amount of horsepower to be able to drive on the road.

Imagine two people, one with more force than the other, pushing a table, in different directions. The person with greater strength is pushing towards the east, and the person with less force towards the north.

3rd Law: If one billiard ball hits another, the second will move with the same force as the first.

A man deflates a balloon; the force with which the air comes out causes the balloon to move from one side to the other.

A child wants to jump to climb a tree (reaction), he must push the ground to propel himself (action).

Hammer pushes a nail.

Hope that helps :)

Explanation:

Running is an example of potential or kinetic energy

Answers

When a person runs, their body must convert potential energy into kinetic energy. Potential energy is the energy stored within a system. Potential energy is used when the system uses kinetic energy to move in a horizontal direction. In the human body, potential energy is stored in the form of chemical energy.
Running is a kinetic energy

PLS HELP FIND THE AVREGE KENETIC ENERGY!!

Answers

Answer: if you gogle it it will tell you the awenser

lanation:

Amir and Gracie left some evidence of breakfast behind. Luckily, some of it can be changed back. What does Mosa write down as clues that a substance will easily change back?

Answers

Answer:

You could say that it was not a chemicly change because that is when you say this is just a example that if you cook eggs you cant un-cook them

Explanation:

Natalia began to draw a diagram to compare bases and acids.

Two overlapping circles with the word bases above the left circle and acids above the right circle. There is an X in the left circle in the portion, which is not part of the overlap.

Which label should be written in the area marked X?

conducts electric current
produces OH– ions
tastes sour
reacts with carbonates.

Answers

Answer:

first one

Explanation:

Answer

conducts electric current

Explanation:

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