Question

use the image below to answer the question. height 25.0 m height 25.0 m red sled mass 100 kg blue sled mass 140 kg the sled will win the sled war because it has more word bank: momentum blue displacement velocity height red blank 1: blank 2:

Explanation:

Step1: Analyze the concept

In a sled - war situation, assuming they start from the same height and the surface is friction - less, they will have the same velocity at the bottom (using conservation of mechanical energy $mgh=\frac{1}{2}mv^{2}$, and $v = \sqrt{2gh}$, which is independent of mass). Momentum is given by $p = mv$. The blue sled has a mass of $m_{blue}=140$ kg and the red sled has a mass of $m_{red}=100$ kg. Since $v$ is the same for both and $m_{blue}>m_{red}$, the blue sled has more momentum.

Step2: Fill in the blanks

The blue sled will win because it has more momentum.

Answer:

Blank 1: blue
Blank 2: momentum