#### theevilfly1234

Suppose a 0.04 kg car traveling at 2.00 m/s can barely break an egg. What is the minimum speed a 0.08 kg car would need to have in order to break the egg?
A. 1.02 m/s
B. 1.00 m/s
C.0.80 m/s
D.2.00 m/s
Can anyone give me an equation or way of solving it to guide me to find the answer?

#### Cervesa

The first car has momentum = (0.04 kg)(2.00 m/s) and barely cracks the egg.

The second car's mass is double that of the first. What would you expect its velocity would need to be if a little more momentum is necessary to break the egg?

• topsquark

#### theevilfly1234

The first car has momentum = (0.04 kg)(2.00 m/s) and barely cracks the egg.

The second car's mass is double that of the first. What would you expect its velocity would need to be if a little more momentum is necessary to break the egg?
I don’t understand completely but I’m guessing it would need a minimum speed of 1.00 m/s since it’s double the size

#### Cervesa

The same momentum will barely crack the egg. You want a velocity that will break it. Think about it ...

• topsquark

#### theevilfly1234

The same momentum will barely crack the egg. You want a velocity that will break it. Think about it ...
Well, the highest momentum from my options would be 2.00 m/s which was the speed of the 0.04 kg car. I’m guessing if the 0.08 car was going at the same speed, it’d be able to actually break the egg.

#### Cervesa

Suppose a 0.04 kg car traveling at 2.00 m/s can barely break an egg. What is the minimum speed a 0.08 kg car would need to have in order to break the egg?
A. 1.02 m/s
B. 1.00 m/s
C.0.80 m/s
D.2.00 m/s
Can anyone give me an equation or way of solving it to guide me to find the answer?

#### theevilfly1234

I’m a little slow so I’m still not catching up. How exactly am I supposed to calculate the minimum speed?

#### Cervesa

What is the lowest speed, $v$, among the given choices that satisfies the inequality

$(0.08)(v) > (0.04)(2.00)$

• topsquark

#### theevilfly1234

What is the lowest speed, $v$, among the given choices that satisfies the inequality

$(0.08)(v) > (0.04)(2.00)$
That would be A.1.02, is that correct?