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Sveta_85 [38]
3 years ago
11

A 2.0-kg cart collides with a 1.0-kg cart that is initially at rest on a low-friction track. After the collision, the 1.0-kg car

t moves to the right at 0.50 m/s and the 2.0-kg cart moves to the right at 0.25 m/s . If the positive direction is to the right, what was the initial velocity of the 2.0-kg cart?
Physics
1 answer:
JulsSmile [24]3 years ago
4 0

Answer:

Initial velocity of first cart will be 0.5 m /sec

Explanation:

We have given mass of the cart m_1=2kg

Its collides with other cart of mass m_2=1kg

Let the initial velocity of cart 1 is v_{1i}

As the car 2 is initially at rest so v_{2i} = 0 m/sec

After the collision velocity of first cart is 0.25 m/sec

So v_{1f} = 0.25 m/sec and velocity of second cart is 0.50 m /sec

So v_{2f} = 0.5 m/sec

From conservation of momentum we know that

m_1v_{1i}+m_2v_{2i}=m_1v_{1f}+m_2v_{2f}

2\times v_{1i}+1\times 0=2\times 0.25+1\times 0.5

v_{1i} = 0.5 m /sec

So initial velocity of first cart will be 0.5 m /sec

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