Question

String holding carts together 100 g 300 g 1.0 m/s The carts shown have a compressed spring between them and a string holding them together. They are sliding, along a frictionless air track, at an initial speed of 1.00 m/s in positive x-direction to the right (?). After sliding along for a while, the string breaks, pushing the carts away from each other. After this happens, the 300 g cart is traveling to the right at a speed of 1.15 m/s. (a) What is the velocity of the 100 g cart? Give your answer in m/s to two significant figures (without units). 0.5 0.5 (b) If the spring constant of the spring is 100 N/m, by how much was the spring initially compressed? Give your answer in cm to three significant figures (without units). X

          String holding carts together
100 g 300 g
1.0 m/s
The carts shown have a compressed spring between them and a string holding them together. They are
sliding, along a frictionless air track, at an initial speed of 1.00 m/s in positive x-direction to the right (?). After
sliding along for a while, the string breaks, pushing the carts away from each other. After this happens, the
300 g cart is traveling to the right at a speed of 1.15 m/s.
(a) What is the velocity of the 100 g cart?
Give your answer in m/s to two significant figures (without units).
0.5
0.5
(b) If the spring constant of the spring is 100 N/m, by how much was the spring initially compressed?
Give your answer in cm to three significant figures (without units).
X

String holding carts together
100 g 300 g
1.0 m/s
The carts shown have a compressed spring between them and a string holding them together. They are
sliding, along a frictionless air track, at an initial speed of 1.00 m/s in positive x-direction to the right (?). After
sliding along for a while, the string breaks, pushing the carts away from each other. After this happens, the
300 g cart is traveling to the right at a speed of 1.15 m/s.
(a) What is the velocity of the 100 g cart?
Give your answer in m/s to two significant figures (without units).
0.5
0.5
(b) If the spring constant of the spring is 100 N/m, by how much was the spring initially compressed?
Give your answer in cm to three significant figures (without units).
X

Added by Sherry S.

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