science
Grade-11
Easy
Question
A Cart with a mass of 2kg travelling at 6 mS collides with another cart of mass 0.4 kg travelling in the same direction at 2 mS. It bounces off , as shown in figure 4. After impact, the 2 kg cart travels at 3 mS in the same direction. Calculate the velocity of the 0.4 kg cart after the collision.
before collision 
after collision 
FIGURE 4 I this collision, the second cart bounces off the first cart.
- 1.4 m/s
- 0m/s
- 17 m/s
- none
The correct answer is: 17 m/s
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